Let’s solve each multiplication problem one by one.
We’ll go row by row, left to right.
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Row 1:
1.
72 × 2
70 × 2 = 140
2 × 2 = 4
140 + 4 =
144
2.
31 × 8
30 × 8 = 240
1 × 8 = 8
240 + 8 =
248
3.
73 × 4
70 × 4 = 280
3 × 4 = 12
280 + 12 =
292
4.
95 × 9
90 × 9 = 810
5 × 9 = 45
810 + 45 =
855
5.
11 × 7
10 × 7 = 70
1 × 7 = 7
70 + 7 =
77
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Row 2:
6.
65 × 9
60 × 9 = 540
5 × 9 = 45
540 + 45 =
585
7.
74 × 4
70 × 4 = 280
4 × 4 = 16
280 + 16 =
296
8.
11 × 9
10 × 9 = 90
1 × 9 = 9
90 + 9 =
99
9.
24 × 5
20 × 5 = 100
4 × 5 = 20
100 + 20 =
120
10.
68 × 9
60 × 9 = 540
8 × 9 = 72
540 + 72 =
612
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Row 3:
11.
99 × 9
100 × 9 = 900 → minus 1×9 = 9 → 900 - 9 =
891
12.
35 × 3
30 × 3 = 90
5 × 3 = 15
90 + 15 =
105
13.
56 × 9
50 × 9 = 450
6 × 9 = 54
450 + 54 =
504
14.
52 × 4
50 × 4 = 200
2 × 4 = 8
200 + 8 =
208
15.
83 × 5
80 × 5 = 400
3 × 5 = 15
400 + 15 =
415
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Row 4:
16.
18 × 4
10 × 4 = 40
8 × 4 = 32
40 + 32 =
72
17.
71 × 3
70 × 3 = 210
1 × 3 = 3
210 + 3 =
213
18.
64 × 4
60 × 4 = 240
4 × 4 = 16
240 + 16 =
256
19.
69 × 7
70 × 7 = 490 → minus 1×7 = 7 → 490 - 7 =
483
20.
51 × 3
50 × 3 = 150
1 × 3 = 3
150 + 3 =
153
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Row 5:
21.
49 × 8
50 × 8 = 400 → minus 1×8 = 8 → 400 - 8 =
392
22.
26 × 5
20 × 5 = 100
6 × 5 = 30
100 + 30 =
130
23.
60 × 2
6 × 2 = 12 → add zero →
120
24.
20 × 9
2 × 9 = 18 → add zero →
180
25.
23 × 9
20 × 9 = 180
3 × 9 = 27
180 + 27 =
207
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All answers verified.
Final Answer:
144, 248, 292, 855, 77, 585, 296, 99, 120, 612, 891, 105, 504, 208, 415, 72, 213, 256, 483, 153, 392, 130, 120, 180, 207
Parent Tip: Review the logic above to help your child master the concept of 2 digit by 1 digit multiplication worksheet printable.
