Let’s solve each multiplication problem step by step. We’ll go row by row, and for each one, we’ll multiply the two numbers carefully.
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First Row:
1.
35 × 40
Think: 35 × 4 = 140, then add a zero →
1400
2.
21 × 54
Break it down:
20 × 54 = 1080
1 × 54 = 54
Add them: 1080 + 54 =
1134
3.
81 × 99
Trick: 81 × (100 - 1) = 81×100 - 81 = 8100 - 81 =
8019
4.
89 × 25
Think: 89 × 100 = 8900, divide by 4 → 8900 ÷ 4 =
2225
(Because 25 is 1/4 of 100)
5.
85 × 59
Break it:
85 × 60 = 5100
Subtract 85 → 5100 - 85 =
5015
6.
81 × 60
81 × 6 = 486, add a zero →
4860
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Second Row:
7.
16 × 73
Break it:
10 × 73 = 730
6 × 73 = 438
Add: 730 + 438 =
1168
8.
97 × 78
Use: (100 - 3) × 78 = 100×78 - 3×78 = 7800 - 234 =
7566
9.
39 × 21
39 × 20 = 780
39 × 1 = 39
Add: 780 + 39 =
819
10.
57 × 48
Break it:
50 × 48 = 2400
7 × 48 = 336
Add: 2400 + 336 =
2736
11.
25 × 67
25 × 60 = 1500
25 × 7 = 175
Add: 1500 + 175 =
1675
12.
10 × 47
Just add a zero →
470
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Third Row:
13.
58 × 26
Break it:
50 × 26 = 1300
8 × 26 = 208
Add: 1300 + 208 =
1508
14.
41 × 97
(40 + 1) × 97 = 40×97 + 1×97
40×97 = 3880
+97 =
3977
15.
41 × 85
40 × 85 = 3400
1 × 85 = 85
Add: 3400 + 85 =
3485
16.
10 × 23
Add a zero →
230
17.
41 × 98
41 × (100 - 2) = 4100 - 82 =
4018
18.
16 × 74
10 × 74 = 740
6 × 74 = 444
Add: 740 + 444 =
1184
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Fourth Row:
19.
54 × 81
Break it:
50 × 81 = 4050
4 × 81 = 324
Add: 4050 + 324 =
4374
20.
84 × 36
80 × 36 = 2880
4 × 36 = 144
Add: 2880 + 144 =
3024
21.
39 × 93
(40 - 1) × 93 = 40×93 - 93 = 3720 - 93 =
3627
22.
46 × 68
Break it:
40 × 68 = 2720
6 × 68 = 408
Add: 2720 + 408 =
3128
23.
44 × 18
40 × 18 = 720
4 × 18 = 72
Add: 720 + 72 =
792
24.
10 × 62
Add a zero →
620
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✔ All calculations checked twice!
Final Answer:
1400, 1134, 8019, 2225, 5015, 4860,
1168, 7566, 819, 2736, 1675, 470,
1508, 3977, 3485, 230, 4018, 1184,
4374, 3024, 3627, 3128, 792, 620
Parent Tip: Review the logic above to help your child master the concept of multiplication worksheet grade 7.
