To solve these multiplication problems, we will multiply each 3-digit number by the 2-digit number step by step. Here’s how to do it:
1. Multiply the 3-digit number by the ones digit of the 2-digit number.
2. Multiply the 3-digit number by the tens digit of the 2-digit number (and remember to add a zero at the end because it's actually multiplying by 10).
3. Add the two results together.
Let’s go through each problem:
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1) 584 x 46
Step 1: 584 x 6 = 3504
Step 2: 584 x 40 = 23360
Step 3: 3504 + 23360 =
26864
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2) 671 x 38
Step 1: 671 x 8 = 5368
Step 2: 671 x 30 = 20130
Step 3: 5368 + 20130 =
25498
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3) 807 x 54
Step 1: 807 x 4 = 3228
Step 2: 807 x 50 = 40350
Step 3: 3228 + 40350 =
43578
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4) 943 x 27
Step 1: 943 x 7 = 6601
Step 2: 943 x 20 = 18860
Step 3: 6601 + 18860 =
25461
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5) 648 x 19
Step 1: 648 x 9 = 5832
Step 2: 648 x 10 = 6480
Step 3: 5832 + 6480 =
12312
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6) 428 x 49
Step 1: 428 x 9 = 3852
Step 2: 428 x 40 = 17120
Step 3: 3852 + 17120 =
20972
---
7) 687 x 64
Step 1: 687 x 4 = 2748
Step 2: 687 x 60 = 41220
Step 3: 2748 + 41220 =
43968
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8) 489 x 56
Step 1: 489 x 6 = 2934
Step 2: 489 x 50 = 24450
Step 3: 2934 + 24450 =
27384
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9) 715 x 83
Step 1: 715 x 3 = 2145
Step 2: 715 x 80 = 57200
Step 3: 2145 + 57200 =
59345
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10) 973 x 66
Step 1: 973 x 6 = 5838
Step 2: 973 x 60 = 58380
Step 3: 5838 + 58380 =
64218
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11) 389 x 85
Step 1: 389 x 5 = 1945
Step 2: 389 x 80 = 31120
Step 3: 1945 + 31120 =
33065
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12) 583 x 97
Step 1: 583 x 7 = 4081
Step 2: 583 x 90 = 52470
Step 3: 4081 + 52470 =
56551
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Final Answer:
1) 26864
2) 25498
3) 43578
4) 25461
5) 12312
6) 20972
7) 43968
8) 27384
9) 59345
10) 64218
11) 33065
12) 56551
Parent Tip: Review the logic above to help your child master the concept of math facts worksheet 4th grade.