Students can use the Spectrum Math Grade 3 Answer Key Chapter 4 Lesson 4.5 Multiplying through 9 × 9 as a quick guide to resolve any of their doubts.
Spectrum Math Grade 3 Chapter 4 Lesson 4.5 Multiplying through 9 × 9 Answers Key
Multiply.
Question 1.
a.
Answer:
First find the 3-row and 9-column.
The product is named where the 3-row and 9-column meet.
Therefore the product of 3 and 9 is 27.
b.
Answer:
First find the 7-row and 6-column.
The product is named where the 7-row and 6-column meet.
Therefore the product of 7 and 6 is 42.
c.
Answer:
First find the 5-row and 4-column.
The product is named where the 5-row and 4-column meet.
Therefore the product of 5 and 4 is 20.
d.
Answer:
First find the 7-row and 9-column.
The product is named where the 7-row and 9-column meet.
Therefore the product of 7 and 9 is 63.
e.
Answer:
First find the 8-row and 6-column.
The product is named where the 8-row and 6-column meet.
Therefore the product of 8 and 6 is 48.
f.
Answer:
First find the 5-row and 0-column.
The product is named where the 5-row and 0-column meet.
Therefore the product of 5 and 0 is 0.
Question 2.
a.
Answer:
First find the 4-row and 3-column.
The product is named where the 4-row and 3-column meet.
Therefore the product of 4 and 3 is 12.
b.
Answer:
First find the 8-row and 5-column.
The product is named where the 8-row and 5-column meet.
Therefore the product of 8 and 5 is 40.
c.
Answer:
First find the 4-row and 9-column.
The product is named where the 4-row and 9-column meet.
Therefore the product of 4 and 9 is 36.
d.
Answer:
First find the 3-row and 0-column.
The product is named where the 3-row and 0-column meet.
Therefore the product of 3 and 0 is 0.
e.
Answer:
First find the 5-row and 7-column.
The product is named where the 5-row and 7-column meet.
Therefore the product of 5 and 7 is 35.
f.
Answer:
First find the 2-row and 9-column.
The product is named where the 2-row and 9-column meet.
Therefore the product of 2 and 9 is 18.
Question 3.
a.
Answer:
First find the 5-row and 1-column.
The product is named where the 5-row and 1-column meet.
Therefore the product of 5 and 1 is 5.
b.
Answer:
First find the 4-row and 6-column.
The product is named where the 4-row and 6-column meet.
Therefore the product of 4 and 6 is 24.
c.
Answer:
First find the 8-row and 2-column.
The product is named where the 8-row and 2-column meet.
Therefore the product of 8 and 2 is 16.
d.
Answer:
First find the 6-row and 8-column.
The product is named where the 6-row and 8-column meet.
Therefore the product of 6 and 8 is 48.
e.
Answer:
First find the 4-row and 0-column.
The product is named where the 4-row and 0-column meet.
Therefore the product of 4 and 0 is 0.
f.
Answer:
First find the 0-row and 9-column.
The product is named where the 0-row and 9-column meet.
Therefore the product of 0 and 9 is 0.
Question 4.
a.
Answer:
First find the 3-row and 1-column.
The product is named where the 3-row and 1-column meet.
Therefore the product of 3 and 1 is 3.
b.
Answer:
First find the 6-row and 4-column.
The product is named where the 6-row and 4-column meet.
Therefore the product of 6 and 4 is 24
c.
Answer:
First find the 9-row and 2-column.
The product is named where the 9-row and 2-column meet.
Therefore the product of 9 and 2 is 18.
d.
Answer:
First find the 3-row and 4-column.
The product is named where the 3-row and 4-column meet.
Therefore the product of 3 and 4 is 12.
e.
Answer:
First find the 6-row and 3-column.
The product is named where the 6-row and 3-column meet.
Therefore the product of 6 and 3 is 18.
f.
Answer:
First find the 5-row and 6-column.
The product is named where the 5-row and 6-column meet.
Therefore the product of 5 and 6 is 30.
Question 5.
a.
Answer:
First find the 3-row and 8-column.
The product is named where the 3-row and 8-column meet.
Therefore the product of 3 and 8 is 24.
b.
Answer:
First find the 3-row and 6-column.
The product is named where the 3-row and 6-column meet.
Therefore the product of 3 and 6 is 18.
c.
Answer:
First find the 6-row and 7-column.
The product is named where the 6-row and 7-column meet.
Therefore the product of 6 and 7 is 42.
d.
Answer:
First find the 9-row and 9-column.
The product is named where the 9-row and 9-column meet.
Therefore the product of 9 and 9 is 81.
e.
Answer:
First find the 8-row and 4-column.
The product is named where the 8-row and 4-column meet.
Therefore the product of 8 and 4 is 32.
f.
Answer:
First find the 5-row and 3-column.
The product is named where the 5-row and 3-column meet.
Therefore the product of 5 and 3 is 15.
Question 6.
a.
Answer:
First find the 2-row and 6-column.
The product is named where the 2-row and 6-column meet.
Therefore the product of 2 and 6 is 12.
b.
Answer:
First find the 8-row and 8-column.
The product is named where the 8-row and 8-column meet.
Therefore the product of 8 and 8 is 64.
c.
Answer:
First find the 9-row and 3-column.
The product is named where the 9-row and 3-column meet.
Therefore the product of 9 and 3 is 27.
d.
Answer:
First find the 7-row and 4-column.
The product is named where the 7-row and 4-column meet.
Therefore the product of 7 and 4 is 28.
e.
Answer:
First find the 8-row and 0-column.
The product is named where the 8-row and 0-column meet.
Therefore the product of 8 and 0 is 8.
f.
Answer:
First find the 7-row and 7-column.
The product is named where the 7-row and 7-column meet.
Therefore the product of 7 and 7 is 49.
