Let’s solve each problem step by step. We’re dividing decimals and whole numbers, and we need to find the missing number in each equation.
We’ll go one by one:
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1) 2.4 ÷ 0.3 = ?
Think: How many times does 0.3 fit into 2.4?
Multiply both by 10 to make it easier: 24 ÷ 3 =
8
2) 32 ÷ 0.4 = ?
Multiply both by 10: 320 ÷ 4 =
80
3) 1.2 ÷ 6 = ?
1.2 divided by 6 → 12 ÷ 60 = 0.2 → or just think: 6 × 0.2 = 1.2 →
0.2
4) 2.8 ÷ 7 = ?
28 ÷ 7 = 4, so 2.8 ÷ 7 =
0.4
5) 21 ÷ 0.3 = ?
Multiply both by 10: 210 ÷ 3 =
70
6) 3.5 ÷ 0.5 = ?
Multiply both by 10: 35 ÷ 5 =
7
7) 1.2 ÷ 0.1 = ?
Dividing by 0.1 is like multiplying by 10 → 1.2 × 10 =
12
8) 9 ÷ 0.9 = ?
Multiply both by 10: 90 ÷ 9 =
10
9) 4.5 ÷ 5 = ?
45 ÷ 5 = 9, so 4.5 ÷ 5 =
0.9
10) 18 ÷ 0.3 = ?
Multiply both by 10: 180 ÷ 3 =
60
11) 3.6 ÷ 12 = ?
36 ÷ 12 = 3, so 3.6 ÷ 12 =
0.3
12) 5 ÷ 10 = ?
Just move decimal:
0.5
13) 2.7 ÷ 0.9 = ?
Multiply both by 10: 27 ÷ 9 =
3
14) 24 ÷ 0.6 = ?
Multiply both by 10: 240 ÷ 6 =
40
15) 2 ÷ 0.5 = ?
Dividing by 0.5 is same as multiplying by 2 → 2 × 2 =
4
16) 6.4 ÷ 8 = ?
64 ÷ 8 = 8, so 6.4 ÷ 8 =
0.8
17) 81 ÷ 0.9 = ?
Multiply both by 10: 810 ÷ 9 =
90
18) 1.6 ÷ 0.4 = ?
Multiply both by 10: 16 ÷ 4 =
4
19) 0.8 ÷ 2 = ?
8 ÷ 2 = 4, so 0.8 ÷ 2 =
0.4
20) 3 ÷ 0.6 = ?
Multiply both by 10: 30 ÷ 6 =
5
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Now the second column — these have blanks on either side.
21) 1.2 ÷ ___ = 0.3
What do you divide 1.2 by to get 0.3?
→ 1.2 ÷ x = 0.3 → x = 1.2 ÷ 0.3 =
4
22) 3.6 ÷ ___ = 4
x = 3.6 ÷ 4 =
0.9
23) 4.5 ÷ ___ = 9
x = 4.5 ÷ 9 =
0.5
24) 24 ÷ ___ = 60
x = 24 ÷ 60 =
0.4
25) 7.2 ÷ ___ = 12
x = 7.2 ÷ 12 =
0.6
26) ___ ÷ 4 = 0.3
x = 0.3 × 4 =
1.2
27) ___ ÷ 7 = 0.6
x = 0.6 × 7 =
4.2
28) ___ ÷ 0.5 = 30
x = 30 × 0.5 =
15
29) ___ ÷ 0.3 = 2
x = 2 × 0.3 =
0.6
30) ___ ÷ 0.2 = 11
x = 11 × 0.2 =
2.2
31) 4.8 ÷ 12 = ?
48 ÷ 12 = 4, so 4.8 ÷ 12 =
0.4
32) 3.2 ÷ ___ = 8
x = 3.2 ÷ 8 =
0.4
33) 1.6 ÷ ___ = 2
x = 1.6 ÷ 2 =
0.8
34) ___ ÷ 0.3 = 30
x = 30 × 0.3 =
9
35) ___ ÷ 0.9 = 1
x = 1 × 0.9 =
0.9
36) 4.4 ÷ ___ = 11
x = 4.4 ÷ 11 =
0.4
37) 28 ÷ 0.7 = ?
Multiply both by 10: 280 ÷ 7 =
40
38) 12 ÷ ___ = 40
x = 12 ÷ 40 =
0.3
39) 56 ÷ ___ = 80
x = 56 ÷ 80 =
0.7
40) ___ ÷ 0.6 = 20
x = 20 × 0.6 =
12
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Final Answer:
1) 8
2) 80
3) 0.2
4) 0.4
5) 70
6) 7
7) 12
8) 10
9) 0.9
10) 60
11) 0.3
12) 0.5
13) 3
14) 40
15) 4
16) 0.8
17) 90
18) 4
19) 0.4
20) 5
21) 4
22) 0.9
23) 0.5
24) 0.4
25) 0.6
26) 1.2
27) 4.2
28) 15
29) 0.6
30) 2.2
31) 0.4
32) 0.4
33) 0.8
34) 9
35) 0.9
36) 0.4
37) 40
38) 0.3
39) 0.7
40) 12
Parent Tip: Review the logic above to help your child master the concept of dividing decimals for 5th grade math worksheet.
