Multiply 2-Digit Numbers Worksheet With Answer Key Page 8
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10LESSON 10.4
Name
Multiply 3- and 4-Digit Numbers
You can use place value and the expanded form of a
3- or 4-digit number to multiply it by another number.
Step 1 Write the expanded form of the 3-digit or 4-digit number.
Step 2 Multiply each addend by the one-digit number.
Step 3 Add these numbers.
Multiply. 4
324
Multiply. 3
2,642
Expand
Multiply by 4
Expand
Multiply by 3
300
1,200
2,000
6,000
20
80
600
1,800
4
16
40
120
1,296 ← Sum
2
6
7,926 ← Sum
Use place value and the expanded form of the 3-digit or 4-digit
number to find the product.
2
456
3
619
1.
2.
3
Expand
Multiply by 2
Expand
Multiply by
800
600
1,800
400
100
10
30
50
12
9
27
6
← Sum
← Sum
912
1,857
5
631
4
2,351
3.
4.
5
4
Expand
Multiply by
Expand
Multiply by
600
3,000
2,000
8,000
30
150
300
1,200
1
5
50
200
← Sum
3,155
1
4
← Sum
9,404
3
4,263
5.
3
Expand
Multiply by
8
3,142
6.
4,000
12,000
8
Expand
Multiply by
200
600
3,000
24,000
60
180
100
800
3
9
40
320
← Sum
12,789
2
16
← Sum
25,136
Reteach RW53
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