Let’s solve each problem step by step. We’re multiplying decimals by whole numbers. Remember: multiply as if they were whole numbers, then count the decimal places in the original number and put that many decimal places in your answer.
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1) 2.3 × 6
Multiply 23 × 6 = 138
2.3 has 1 decimal place → so answer is
13.8
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2) 1.4 × 8
14 × 8 = 112
1.4 has 1 decimal place →
11.2
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3) 0.8 × 4
8 × 4 = 32
0.8 has 1 decimal place →
3.2
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4) 9.5 × 7
95 × 7 = 665
9.5 has 1 decimal place →
66.5
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5) 4.4 × 3
44 × 3 = 132
4.4 has 1 decimal place →
13.2
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6) 6.7 × 7
67 × 7 = 469
6.7 has 1 decimal place →
46.9
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7) 1.7 × 9
17 × 9 = 153
1.7 has 1 decimal place →
15.3
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8) 2.2 × 8
22 × 8 = 176
2.2 has 1 decimal place →
17.6
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9) 3.9 × 5
39 × 5 = 195
3.9 has 1 decimal place →
19.5
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10) 8.5 × 2
85 × 2 = 170
8.5 has 1 decimal place →
17.0 (or just
17)
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11) 9.1 × 3
91 × 3 = 273
9.1 has 1 decimal place →
27.3
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12) 6.8 × 4
68 × 4 = 272
6.8 has 1 decimal place →
27.2
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13) 0.5 × 8
5 × 8 = 40
0.5 has 1 decimal place →
4.0 (or just
4)
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14) 5.7 × 5
57 × 5 = 285
5.7 has 1 decimal place →
28.5
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15) 2.6 × 6
26 × 6 = 156
2.6 has 1 decimal place →
15.6
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Final Answer:
1) 13.8
2) 11.2
3) 3.2
4) 66.5
5) 13.2
6) 46.9
7) 15.3
8) 17.6
9) 19.5
10) 17
11) 27.3
12) 27.2
13) 4
14) 28.5
15) 15.6
Parent Tip: Review the logic above to help your child master the concept of multiplying whole numbers and decimals worksheet.
