This handy Spectrum Math Grade 4 Answer Key Chapter 4 Lesson 4.7 Multiplying 2 Digits by 2 Digits provides detailed answers for the workbook questions.
Spectrum Math Grade 4 Chapter 4 Lesson 4.7 Multiplying 2 Digits by 2 Digits Answers Key
Multiply 9 ones by 7.
Put 6 tens above the 1.
Multiply 1 ten by 7.
Then, add 6 tens.
Multiply 9 ones by 20.
Put 1 hundred above the 1.
Multiply 1 ten by 20.
Then, add 1 hundred.
Multiply.
Question 1.
a.
Answer:
Multiply the given number 22 with 33 by following the below procedure and the result 726 as shown below.
b.
Answer:
Multiply the given number 11 with 45 by following the below procedure and the result 495 as shown below.
c.
Answer:
Multiply the given number 80 with 10 by following the below procedure and the result 800 as shown below.
d.
Answer:
Multiply the given number 31 with 23 by following the below procedure and the result 713 as shown below.
e.
Answer:
Multiply the given number 13 with 12 by following the below procedure and the result 156 as shown below.
f.
Answer:
Multiply the given number 30 with 31 by following the below procedure and the result 930 as shown below.
Question 2.
a.
Answer:
Multiply the given number 41 with 21 by following the below procedure and the result 860 as shown below.
b.
Answer:
Multiply the given number 32 with 20 by following the below procedure and the result 640 as shown below.
c.
Answer:
Multiply the given number 40 with 10 by following the below procedure and the result 400 as shown below.
d.
Answer:
Multiply the given number 21 with 31 by following the below procedure and the result 651 as shown below.
e.
Answer:
Multiply the given number 30 with 30 by following the below procedure and the result 900 as shown below.
f.
Answer:
Multiply the given number 14 with 10 by following the below procedure and the result 140 as shown below.
Question 3.
a.
Answer:
Multiply the given number 22 with 44 by following the below procedure and the result 968 as shown below.
b.
Answer:
Multiply the given number 14 with 20 by following the below procedure and the result 280 as shown below.
c.
Answer:
Multiply the given number 40 with 12 by following the below procedure and the result 480 as shown below.
d.
Answer:
Multiply the given number 90 with 10 by following the below procedure and the result 900 as shown below.
e.
Answer:
Multiply the given number 13 with 13 by following the below procedure and the result 169 as shown below.
f.
Answer:
Multiply the given number 30 with 11 by following the below procedure and the result 330 as shown below.
Question 4.
a.
Answer:
Multiply the given number 70 with 11 by following the below procedure and the result 770 as shown below.
b.
Answer:
Multiply the given number 12 with 11 by following the below procedure and the result 132 as shown below.
c.
Answer:
Multiply the given number 81 with 10 by following the below procedure and the result 810 as shown below.
d.
Answer:
Multiply the given number 24 with 12 by following the below procedure and the result 288 as shown below.
e.
Answer:
Multiply the given number 40 with 22 by following the below procedure and the result 880 as shown below.
f.
Answer:
Multiply the given number 31 with 31 by following the below procedure and the result 960 as shown below.
