Placing Decimals With Multiplication Worksheet With Answer Key
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1
2Name:
Placing Decimals with Multiplication
Determine the placement of the decimal in each product.
A n s w e r s
4
5
3
1
0
2
5.809 × 7.8 =
19.8456
1.
1. Count the quantity of numbers to the right of the
2. Add the amounts together. Your answer
decimal for each factor.
should have the same quantity of numbers
to the right of the decimal.
5.42443
5.809 has 3 numbers right of the decimal (5.809)
2.
3 + 1 = 4
7.8 has 1 number right of the decimal (7.8)
5.089 (3) × 7.8 (1) = 45.3102 (4)
33.397
3.
Also notice that 5 × 7 = 35 and 6 × 8 = 48 , so 5.809 × 7.8 will be a more than 35 but less than 48.
54.145
4.
.
1) 8.269 × 2.4 =
1
9
8
4
5
6
9.561
5.
.
2) 1.21 × 4.483 =
5
4
2
4
4
3
20.020
.
6.
3) 3.67 × 9.1 =
3
3
3
9
7
.
3.51
4) 5.95 × 9.1 =
5
4
1
4
5
7.
.
5) 1 × 9.561 =
9
5
6
1
39.30
8.
.
6) 3.64 × 5.5 =
2
0
0
2
0
16.86055
9.
.
7) 3 × 1.17 =
3
5
1
22.18892
.
10.
8) 5 × 7.86 =
3
9
3
0
.
73.689
9) 4.69 × 3.595 =
1
6
8
6
0
5
5
11.
.
10) 2.84 × 7.813 =
2
2
1
8
8
9
2
7.114
12.
.
11) 8.7 × 8.47 =
7
3
6
8
9
23.68142
13.
.
12) 2 × 3.557 =
7
1
1
4
71.368
.
14.
13) 8.54 × 2.773 =
2
3
6
8
1
4
2
.
21.4594
14) 8.8 × 8.11 =
7
1
3
6
8
15.
.
15) 8.2 × 2.617 =
2
1
4
5
9
4
25.3854
16.
.
16) 3.134 × 8.1 =
2
5
3
8
5
4
67.13616
17.
.
17) 8.268 × 8.12 =
6
7
1
3
6
1
6
81.969
18.
.
18) 9.21 × 8.9 =
8
1
9
6
9
.
51.54
19) 6 × 8.59 =
5
1
5
4
19.
.
20) 4.846 × 5.74 =
2
7
8
1
6
0
4
27.81604
20.
1-10 95 90 85 80 75 70 65 60 55 50
9
Math
11-20 45 40 35 30 25 20 15 10 5
0
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