Go through the Math in Focus Grade 3 Workbook Answer Key Chapter 7 Multiplication to finish your assignments.

Math Journal

Multiply 243 by 2.

Example
Step 1
Multiply 3 ones by 2.
2 × 3 ones = 6 ones

Step 2
Multiply 4 tens by 2.
2 × 4 tens = 8 tens

Step 3
Multiply 2 hundreds by 2.
2 × 2 hundreds = 4 hundreds
So, 2 × 243 = 486.

Multiply 323 by 3.
Step 1 _________________
_____________________
Step 2 _________________
_____________________
Step 3 _________________
_____________________

323 × 3 = 969.

Explanation:
Step 1
Multiply 3 ones by 3.
3 × 3 ones = 9 ones

Step 2
Multiply 2 tens by 3.
2 × 3 tens = 6 tens

Step 3
Multiply 3 hundreds by 3.
3 × 3 hundreds = 9 hundreds

So 323 × 3 is 969.

Challenging Practice

Fill in the missing numbers.

Question 1.

The missing digit is 4.

Explanation:
As the product is 48 and the multiplier 2, to find the missing digit we will divide 48÷2 which is 24. So the missing digit is 4.

Question 2.

The missing digit is 4.

Explanation:
As the product is 68 and the multiplicand is 17, to find the missing digit we will divide 68÷17 which is 4. So the missing digit is 4.

Question 3.

The missing digit is 2.

Explanation:
As the product is 693 and the multiplier 3, to find the missing digit we will divide 693÷3 which is 231. So the missing digit is 2.

Question 4.

The missing digit is 5.

Explanation:
As the product is 605 and the multiplicand is 121, to find the missing digit we will divide 605÷121 which is 5. So the missing digit is 5.

Question 5.

The missing digit is 2.

Explanation:
As the product is 616 and the multiplicand is 308, to find the missing digit we will divide 616÷308 which is 2. So the missing digit is 2.

Question 6.

The missing digit is 3.

Explanation:
As the product is 540 and the multiplier 4, to find the missing digit we will divide 540÷4 which is 135. So the missing digit is 3.

Question 7.

The missing digit is 2.

Explanation:
As the product is 756 and the multiplier 3, to find the missing digit we will divide 756÷3 which is 252. So the missing digit is 2.

Question 8.

The missing digit is 4.

Explanation:
As the product is 592 and the multiplier 4, to find the missing digit we will divide 592÷4 which is 148. So the missing digit is 4.