Question

name ____________ date ________
multiplying decimals
1.
3.75
× 2
______
7.50 (handwritten)
2.
5.29
× 5
______
26.45 (handwritten)
3.
6.24
× 7
______
43.65 (handwritten)
4.
8.50
× 3
______
25.50 (handwritten)
5.
7.49
× 8
______
59.92 (handwritten)
6.
8.71
× 4
______
34.84 (handwritten)
7.
6.25
× 9
______
54.25 (handwritten)
8.
9.9
× 1.5
______
14.85 (handwritten)
9.
4.7
× 3.6
______
16.92 (handwritten, maybe? the original is a bit unclear but looks like 16.19 or similar, but likely a decimal multiplication result)
10.
6.5
× 3.8
______
24.70 (handwritten as 040? maybe a typo, correct should be 24.70)
11.
7.5
× 4.4
______
33.00 (handwritten as 30,000.00? likely a mistake, correct is 33.00)
12.
7.2
× 3.8
______
(blank with some scribbles)
13.
16.4
× 7.1
______
(blank with some scribbles)
14.
1.8
× 9.4
______
(blank with some scribbles)
15.
5.6
× 2.5
______
14.00 (handwritten as 4.0? maybe a mistake, correct is 14.00)

Explanation:

Step1: Multiply 3.75 by 2

$3.75 \times 2 = 7.50$

Step2: Multiply 5.29 by 5

$5.29 \times 5 = 26.45$

Step3: Multiply 6.24 by 7

$6.24 \times 7 = 43.68$

Step4: Multiply 8.50 by 3

$8.50 \times 3 = 25.50$

Step5: Multiply 7.49 by 8

$7.49 \times 8 = 59.92$

Step6: Multiply 8.71 by 4

$8.71 \times 4 = 34.84$

Step7: Multiply 6.25 by 9

$6.25 \times 9 = 56.25$

Step8: Multiply 9.9 by 1.5

First calculate $99 \times 15 = 1485$, count 2 decimal places: $9.9 \times 1.5 = 14.85$

Step9: Multiply 4.7 by 3.6

First calculate $47 \times 36 = 1692$, count 2 decimal places: $4.7 \times 3.6 = 16.92$

Step10: Multiply 6.5 by 3.8

First calculate $65 \times 38 = 2470$, count 2 decimal places: $6.5 \times 3.8 = 24.70$

Step11: Multiply 7.5 by 4.4

First calculate $75 \times 44 = 3300$, count 2 decimal places: $7.5 \times 4.4 = 33.00$

Step12: Multiply 7.2 by 3.8

First calculate $72 \times 38 = 2736$, count 2 decimal places: $7.2 \times 3.8 = 27.36$

Step13: Multiply 16.4 by 7.1

First calculate $164 \times 71 = 11644$, count 2 decimal places: $16.4 \times 7.1 = 116.44$

Step14: Multiply 1.8 by 9.4

First calculate $18 \times 94 = 1692$, count 2 decimal places: $1.8 \times 9.4 = 16.92$

Step15: Multiply 5.6 by 2.5

First calculate $56 \times 25 = 1400$, count 2 decimal places: $5.6 \times 2.5 = 14.00$

Answer:

1. $7.50$
2. $26.45$
3. $43.68$
4. $25.50$
5. $59.92$
6. $34.84$
7. $56.25$
8. $14.85$
9. $16.92$
10. $24.70$
11. $33.00$
12. $27.36$
13. $116.44$
14. $16.92$
15. $14.00$