Divide by 8 Worksheet

Dividing by 8 is halving three times, which gives students a reliable method even before the 8s facts are memorized. The sheet has 30 problems for grades 3 and 4 and takes about 12 minutes.

Grade: Grade 3–4
Problems: 30
Time: About 12 minutes
Standard: 3.OA.C.7

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Two pages: the worksheet, then the answer key. No sign-up needed.

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Part A: In order Divide. Think of the matching multiplication fact.

8 ÷ 8 = 1
16 ÷ 8 = 2
24 ÷ 8 = 3
32 ÷ 8 = 4
40 ÷ 8 = 5
48 ÷ 8 = 6
56 ÷ 8 = 7
64 ÷ 8 = 8
72 ÷ 8 = 9
80 ÷ 8 = 10
88 ÷ 8 = 11
96 ÷ 8 = 12

Part B: Mixed up Divide.

72 ÷ 8 = 9
0 ÷ 8 = 0
24 ÷ 8 = 3
56 ÷ 8 = 7
8 ÷ 8 = 1
40 ÷ 8 = 5
88 ÷ 8 = 11
96 ÷ 8 = 12
80 ÷ 8 = 10
64 ÷ 8 = 8
48 ÷ 8 = 6
32 ÷ 8 = 4

Part C: Missing number Write the number that makes each fact true.

40 ÷ 8 = 5
32 ÷ 8 = 4
48 ÷ 8 = 6
88 ÷ 8 = 11
64 ÷ 8 = 8
96 ÷ 8 = 12

Tips for teachers and parents

Halve three times. For 64 ÷ 8: half of 64 is 32, half of 32 is 16, half of 16 is 8.
Use the 4s: dividing by 8 is dividing by 4 and then by 2. 72 ÷ 4 = 18, and 18 ÷ 2 = 9.
Recall the close facts directly once they are known: 56 ÷ 8 = 7 and 64 ÷ 8 = 8.
Every dividend here is even. If halving ever gives an odd number before the third step, the student has made a slip.

Common mistakes

Halving only twice, which gives the ÷ 4 answer. An answer like 48 ÷ 8 = 12 is the sign. Count the three halves.
Mixing up 56 ÷ 8 = 7 and 48 ÷ 8 = 6. Check by multiplying back with the 8 times table.

What to practice next

Try dividing by 9 next, then the mixed division facts review.

Frequently asked questions

What is the trick for dividing by 8?

Halve the number three times. 40 ÷ 8: half of 40 is 20, then 10, then 5.

Why do all the problems use even numbers?

Every multiple of 8 is even, so only even numbers divide evenly by 8.

Where is the answer key?

Page 2 of the PDF.