Let’s solve each problem step by step. We’ll do the multiplication first, then the division.
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Multiplication Problems:
1.
17 × 13
Break it down:
17 × 10 = 170
17 × 3 = 51
Add them: 170 + 51 =
221
2.
21 × 22
21 × 20 = 420
21 × 2 = 42
Add: 420 + 42 =
462
3.
32 × 42
Let’s do 32 × 40 = 1280
32 × 2 = 64
Add: 1280 + 64 =
1344
4.
56 × 12
56 × 10 = 560
56 × 2 = 112
Add: 560 + 112 =
672
5.
21 × 14
21 × 10 = 210
21 × 4 = 84
Add: 210 + 84 =
294
6.
20 × 16
Easy! 20 × 16 = (2 × 16) × 10 = 32 × 10 =
320
7.
14 × 15
14 × 10 = 140
14 × 5 = 70
Add: 140 + 70 =
210
8.
27 × 42
Let’s break 42 into 40 + 2
27 × 40 = 1080
27 × 2 = 54
Add: 1080 + 54 =
1134
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Division Problems:
9.
630 ÷ 6
6 goes into 6 once → 1
Bring down 3 → 6 into 3? No, so 0
Bring down 0 → now we have 30
6 into 30 is 5
So:
105
Check: 6 × 105 = 630
✔
10.
3920 ÷ 14
Let’s divide step by step.
14 into 39 → 2 times (14×2=28), remainder 11
Bring down 2 → 112
14 into 112 → 8 times (14×8=112), remainder 0
Bring down 0 → 0
14 into 0 → 0
So:
280
Check: 14 × 280 = 3920
✔
11.
84 ÷ 6
6 into 8 → 1, remainder 2
Bring down 4 → 24
6 into 24 → 4
So:
14
Check: 6 × 14 = 84
✔
12.
90 ÷ 6
6 into 9 → 1, remainder 3
Bring down 0 → 30
6 into 30 → 5
So:
15
Check: 6 × 15 = 90
✔
13.
1404 ÷ 9
9 into 14 → 1, remainder 5
Bring down 0 → 50
9 into 50 → 5 (9×5=45), remainder 5
Bring down 4 → 54
9 into 54 → 6
So:
156
Check: 9 × 156 = 1404
✔
14.
5192 ÷ 22
This one is trickier. Let’s try long division.
22 into 51 → 2 times (22×2=44), remainder 7
Bring down 9 → 79
22 into 79 → 3 times (22×3=66), remainder 13
Bring down 2 → 132
22 into 132 → 6 times (22×6=132), remainder 0
So:
236
Check: 22 × 236 = let’s verify:
20×236 = 4720
2×236 = 472
Total: 4720 + 472 = 5192
✔
15.
76 ÷ 6
6 into 7 → 1, remainder 1
Bring down 6 → 16
6 into 16 → 2, remainder 4
So:
12 with a remainder of 4, or as a mixed number: 12 R4
But since this is likely expecting whole numbers or exact answers — wait, 76 ÷ 6 is not exact.
Wait — maybe I made a mistake? Let me check again.
Actually, 6 × 12 = 72, 76 - 72 = 4 → yes, remainder 4.
But looking at other problems, they all seem to be exact divisions. Did I misread?
Problem 15: 6 ) 76 → that’s correct.
Hmm… perhaps it’s okay to leave as quotient and remainder? But let’s see if the worksheet expects decimal or fraction.
Since others are exact, maybe I should double-check the problem.
Wait — actually, 76 ÷ 6 = 12.666... but in elementary math, sometimes they accept “12 R4”.
Parent Tip: Review the logic above to help your child master the concept of long division and multiplication worksheet.
