Students can use the Spectrum Math Grade 3 Answer Key Chapter 2 Lesson 2.5 Thinking Subtraction for Addition as a quick guide to resolve any of their doubts
Spectrum Math Grade 3 Chapter 2 Lesson 2.5 Thinking Subtraction for Addition Answers Key
To check
215 + 109 = 324,
subtract 109 from 324.
Add. Check each answer.
Question 1.
a.
Answer:
Add both the given numbers and the result is 369 and then verify it by subtracting with the number 212 as shown below.
b.
Answer:
Add both the given numbers and the result is 901 and then verify it by subtracting with the number 182 as shown below.
c.
Answer:
Add both the given numbers and the result is 415 and then verify it by subtracting with the number 105 as shown below.
d.
Answer:
Add both the given numbers and obtain the result as 732 and then verify it by subtracting with the number 519 as shown below.
e.
Answer:
Add both the given numbers and the result is 521 and then verify it by subtracting with the number 215 as shown below.
f.
Answer:
Add both the given numbers and the result is 290 and then verify it by subtracting with the number 170 as shown below.
Question 2.
a.
Answer:
Add both the given numbers and obtain the result as 1108 and then verify it by subtracting with the number 398 as shown below.
b.
Answer:
Add both the given numbers and the result is 606 and then verify it by subtracting with the number 249 as shown below
c.
Answer:
Add both the given numbers and the result is 1075 and then verify it by subtracting with the number 363 as shown below
d.
Answer:
Add both the given numbers and the result is 1005 and then verify it by subtracting with the number 291 as shown below
e.
Answer:
Add both the given numbers and the result is 395 and then verify it by subtracting with the number 85 as shown below
f.
Answer:
Add both the given numbers and the result is 476 and then verify it by subtracting with the number 57 as shown below
Question 3.
a.
Answer:
Add both the given numbers and the result is 847 and then verify it by subtracting with the number 547 as shown below
b.
Answer:
Add both the given numbers and the result is 711 and then verify it by subtracting with the number 120 as shown below
c.
Answer:
Add both the given numbers and the result is 931 and then verify it by subtracting with the number 319 as shown below
d.
Answer:
Add both the given numbers and the result is 550 and then verify it by subtracting with the number 125 as shown below
e.
Answer:
Add both the given numbers and the result is 531 and then verify it by subtracting with the number 120 as shown below
f.
Answer:
Add both the given numbers and obtain the result as 506 and then verify it by subtracting with the number 259 as shown below
Question 4.
a.
Answer:
Add both the given numbers and the result is 1055 and then verify it by subtracting with the number 192 as shown below
b.
Answer:
Add both the given numbers and the result is 589 and then verify it by subtracting with the number 130 as shown below
c.
Answer:
Add both the given numbers and the result is 812 and then verify it by subtracting with the number 209 as shown below
d.
Answer:
Add both the given numbers and obtain the result as 902 and then verify it by subtracting with the number 191 as shown below
e.
Answer:
Add both the given numbers and the result is 382 and then verify it by subtracting with the number 130 as shown below
f.
Answer:
Add both the given numbers and the result is 695 and then verify it by subtracting with the number 283 as shown below
