Students can use the Spectrum Math Grade 3 Answer Key Chapter 1 Lesson 1.3 Adding 2-Digit Numbers (no renaming) as a quick guide to resolve any of their doubts
Spectrum Math Grade 3 Chapter 1 Lesson 1.3 Adding 2-Digit Numbers (no renaming) Answers Key
Add.
Question 1.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 6 which are in one’s place. Adding 3 and 6 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 1 gives the sum 3. So, 3 should be written in ten’s place in the answer. So, the sum of given two numbers is 39.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 1 and 2 which are in one’s place. Adding 1 and 2 gives the sum as 3. So, 3 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 2 gives the sum 3. So, 3 should be written in ten’s place in the answer. So, the sum of given two numbers is 33.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 0 and 0 which are in one’s place. Adding 0 and 0 gives the sum as 0. So, 0 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 1 gives the sum 3. So, 3 should be written in ten’s place in the answer. So, the sum of given two numbers is 30.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 6 and 2 which are in one’s place. Adding 6 and 2 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 1 gives the sum 2. So, 2 should be written in ten’s place in the answer. So, the sum of given two numbers is 28.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 5 which are in one’s place. Adding 3 and 5 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 7 and 1 gives the sum 8. So, 8 should be written in ten’s place in the answer. So, the sum of given two numbers is 88.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 3 which are in one’s place. Adding 3 and 3 gives the sum as 6. So, 6 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 6 and 1 gives the sum 7. So, 7 should be written in ten’s place in the answer. So, the sum of given two numbers is 76.
Question 2.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 0 and 7 which are in one’s place. Adding 0 and 7 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 1 gives the sum 2. So, 2 should be written in ten’s place in the answer. So, the sum of given two numbers is 27.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 8 and 0 which are in one’s place. Adding 8 and 0 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 3 gives the sum 4. So, 4 should be written in ten’s place in the answer. So, the sum of given two numbers is 48.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 4 which are in one’s place. Adding 3 and 4 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 1 gives the sum 2. So, 2 should be written in ten’s place in the answer. So, the sum of given two numbers is 27.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 1 which are in one’s place. Adding 2 and 1 gives the sum as 3 So, 3 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 5 gives the sum 8. So, 8 should be written in ten’s place in the answer. So, the sum of given two numbers is 83.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 1 and 1 which are in one’s place. Adding 1 and 1 gives the sum as 2. So, 2 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 8 and 1 gives the sum 9. So, 9 should be written in ten’s place in the answer. So, the sum of given two numbers is 92.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 4 and 1 which are in one’s place. Adding 4 and 1 gives the sum as 5. So, 5 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 2 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 55.
Question 3.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 4 and 2 which are in one’s place. Adding 4 and 2 gives the sum as 6. So, 6 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 1 gives the sum 2. So, 2 should be written in ten’s place in the answer. So, the sum of given two numbers is 26.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 4 and 3 which are in one’s place. Adding 4 and 3 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 1 gives the sum 4. So, 4 should be written in ten’s place in the answer. So, the sum of given two numbers is 47.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 1 and 8 which are in one’s place. Adding 1 and 8 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 4 and 1 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 59.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 0 and 0 which are in one’s place. Adding 0 and 0 gives the sum as 0. So, 0 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 5 gives the sum 8. So, 8 should be written in ten’s place in the answer. So, the sum of given two numbers is 80.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 7 and 0 which are in one’s place. Adding 7 and 0 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 5 gives the sum 7. So, 7 should be written in ten’s place in the answer. So, the sum of given two numbers is 77.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 2 which are in one’s place. Adding 2 and 2 gives the sum as 4. So, 4 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 2 gives the sum 4. So, 4 should be written in ten’s place in the answer. So, the sum of given two numbers is 44.
Question 4.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 8 and 1 which are in one’s place. Adding 8 and 1 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 4 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 59.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 2 which are in one’s place. Adding 3 and 2 gives the sum as 5. So, 5 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 4 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 55.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 4 which are in one’s place. Adding 2 and 4 gives the sum as 6. So, 6 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 4 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 56.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 1 and 7 which are in one’s place. Adding 1 and 7 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 1 gives the sum 4. So, 4 should be written in ten’s place in the answer. So, the sum of given two numbers is 48.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 7 and 2 which are in one’s place. Adding 7 and 2 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 4 gives the sum 6. So, 6 should be written in ten’s place in the answer. So, the sum of given two numbers is 69.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 1 and 8 which are in one’s place. Adding 1 and 8 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 3 gives the sum 6. So, 6 should be written in ten’s place in the answer. So, the sum of given two numbers is 69.
Question 5.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 4 which are in one’s place. Adding 3 and 4 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 1 gives the sum 2. So, 2 should be written in ten’s place in the answer. So, the sum of given two numbers is 27.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 5 and 3 which are in one’s place. Adding 5 and 3 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 4 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 58.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 6 which are in one’s place. Adding 3 and 2 gives the sum as 5. So, 5 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 4 gives the sum 6. So, 6 should be written in ten’s place in the answer. So, the sum of given two numbers is 65.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 1 which are in one’s place. Adding 2 and 1 gives the sum as 3. So, 3 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 2 and 7 gives the sum 9. So, 9 should be written in ten’s place in the answer. So, the sum of given two numbers is 93.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 7 and 0 which are in one’s place. Adding 7 and 0 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 6 gives the sum 9. So, 9 should be written in ten’s place in the answer. So, the sum of given two numbers is 97.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 5 and 3 which are in one’s place. Adding 5 and 3 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 2 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 58.
Question 6.
a.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 0 and 3 which are in one’s place. Adding 0 and 3 gives the sum as 3. So, 3 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 1 and 4 gives the sum 5. So, 5 should be written in ten’s place in the answer. So, the sum of given two numbers is 53.
b.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 3 and 0 which are in one’s place. Adding 3 and 0 gives the sum as 3. So, 3 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 7 and 2 gives the sum 9. So, 9 should be written in ten’s place in the answer. So, the sum of given two numbers is 93.
c.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 6 and 3 which are in one’s place. Adding 6 and 3 gives the sum as 9. So, 9 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 8 and 1 gives the sum 9. So, 9 should be written in ten’s place in the answer. So, the sum of given two numbers is 99.
d.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 3 which are in one’s place. Adding 2 and 3 gives the sum as 5. So, 5 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 5 and 1 gives the sum 6. So, 6 should be written in ten’s place in the answer. So, the sum of given two numbers is 65.
e.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 6 which are in one’s place. Adding 2 and 6 gives the sum as 8. So, 8 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 4 and 2 gives the sum 6. So, 6 should be written in ten’s place in the answer. So, the sum of given two numbers is 68.
f.
Answer:
Explanation:
First, we need to add the digits in one’s place. So, we need to add 2 and 5 which are in one’s place. Adding 2 and 5 gives the sum as 7. So, 7 will be placed in the one’s digit in the answer. Next, we need to add the digits in ten’s place. Adding 3 and 4 gives the sum 7. So, 7 should be written in ten’s place in the answer. So, the sum of given two numbers is 77.