Let’s solve each multiplication problem step by step. Remember, we’re multiplying a 2-digit number by a 1-digit number, and sometimes we need to regroup (carry over) when the product is 10 or more.
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Problem 1: 87 × 4
Step 1: Multiply the ones place:
7 × 4 = 28 → Write down 8, carry over 2.
Step 2: Multiply the tens place:
8 × 4 = 32, then add the carried 2 → 32 + 2 = 34
Write down 34.
So, 87 × 4 =
348
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Problem 2: 36 × 9
Step 1: Ones place:
6 × 9 = 54 → Write down 4, carry over 5.
Step 2: Tens place:
3 × 9 = 27, plus carried 5 → 27 + 5 = 32
Write down 32.
So, 36 × 9 =
324
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Problem 3: 48 × 4
Step 1: Ones place:
8 × 4 = 32 → Write down 2, carry over 3.
Step 2: Tens place:
4 × 4 = 16, plus carried 3 → 16 + 3 = 19
Write down 19.
So, 48 × 4 =
192
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Problem 4: 81 × 6
Step 1: Ones place:
1 × 6 = 6 → Write down 6 (no carry).
Step 2: Tens place:
8 × 6 = 48 → Write down 48.
So, 81 × 6 =
486
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Problem 5: 56 × 7
Step 1: Ones place:
6 × 7 = 42 → Write down 2, carry over 4.
Step 2: Tens place:
5 × 7 = 35, plus carried 4 → 35 + 4 = 39
Write down 39.
So, 56 × 7 =
392
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Problem 6: 96 × 8
Step 1: Ones place:
6 × 8 = 48 → Write down 8, carry over 4.
Step 2: Tens place:
9 × 8 = 72, plus carried 4 → 72 + 4 = 76
Write down 76.
So, 96 × 8 =
768
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Final Answer:
348, 324, 192, 486, 392, 768
Parent Tip: Review the logic above to help your child master the concept of multiplication with regrouping worksheet.
