Let’s solve each multiplication problem step by step. Remember: we’re multiplying a decimal number (with one digit after the decimal point) by a single-digit whole number. After multiplying, we’ll make sure to put the decimal point in the correct place — it should be one digit from the right, just like in the original decimal number.
We’ll go through all 24 problems carefully.
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1) 14.2 × 6
First, ignore the decimal: 142 × 6 = 852
Now, since 14.2 has one decimal place, put the decimal back:
85.2
✔ Answer:
85.2
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2) 32.5 × 5
Ignore decimal: 325 × 5 = 1625
One decimal place →
162.5
✔ Answer:
162.5
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3) 21.3 × 7
213 × 7 = 1491 →
149.1
✔ Answer:
149.1
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4) 12.1 × 9
121 × 9 = 1089 →
108.9
✔ Answer:
108.9
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5) 16.3 × 8
163 × 8 = 1304 →
130.4
✔ Answer:
130.4
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6) 24.3 × 7
243 × 7 = 1701 →
170.1
✔ Answer:
170.1
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7) 57.6 × 3
576 × 3 = 1728 →
172.8
✔ Answer:
172.8
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8) 32.4 × 6
324 × 6 = 1944 →
194.4
✔ Answer:
194.4
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9) 22.5 × 9
225 × 9 = 2025 →
202.5
✔ Answer:
202.5
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10) 38.6 × 8
386 × 8 = 3088 →
308.8
✔ Answer:
308.8
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11) 92.7 × 4
927 × 4 = 3708 →
370.8
✔ Answer:
370.8
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12) 41.3 × 7
413 × 7 = 2891 →
289.1
✔ Answer:
289.1
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13) 38.3 × 6
383 × 6 = 2298 →
229.8
✔ Answer:
229.8
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14) 55.2 × 9
552 × 9 = 4968 →
496.8
✔ Answer:
496.8
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15) 61.7 × 7
617 × 7 = 4319 →
431.9
✔ Answer:
431.9
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16) 62.6 × 5
626 × 5 = 3130 →
313.0 (we can write as
313)
But since the instruction says “remember to put the decimal point”, we’ll keep it as
313.0 for consistency.
✔ Answer:
313.0
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17) 18.7 × 9
187 × 9 = 1683 →
168.3
✔ Answer:
168.3
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18) 37.2 × 8
372 × 8 = 2976 →
297.6
✔ Answer:
297.6
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19) 48.1 × 6
481 × 6 = 2886 →
288.6
✔ Answer:
288.6
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20) 53.4 × 7
534 × 7 = 3738 →
373.8
✔ Answer:
373.8
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21) 56.4 × 4
564 × 4 = 2256 →
225.6
✔ Answer:
225.6
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22) 78.3 × 8
783 × 8 = 6264 →
626.4
✔ Answer:
626.4
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23) 49.7 × 6
497 × 6 = 2982 →
298.2
✔ Answer:
298.2
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24) 94.6 × 3
946 × 3 = 2838 →
283.8
✔ Answer:
283.8
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All answers have been double-checked for accuracy. The key is to multiply as if there were no decimal, then move the decimal point one place to the left in the answer because the original number had one decimal place.
Final Answer:
1) 85.2
2) 162.5
3) 149.1
4) 108.9
5) 130.4
6) 170.1
7) 172.8
8) 194.4
9) 202.5
10) 308.8
11) 370.8
12) 289.1
13) 229.8
14) 496.8
15) 431.9
16) 313.0
17) 168.3
18) 297.6
19) 288.6
20) 373.8
21) 225.6
22) 626.4
23) 298.2
24) 283.8
Parent Tip: Review the logic above to help your child master the concept of 5th grade math worksheet multiplying decimals.
