Multiples of 10 — Missing Factor Worksheets for 3rd Grade
Find the missing factor when one factor is a multiple of 10. 15 free printable worksheets, each with an answer key.
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Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
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Multiples of 10 — Missing Factor: what children learn
Missing-factor problems with tens use the same facts: since 5 × 7 = 35, we know 5 × 70 = 350.
Multiples of 10 — Missing Factor: worked example
5 × __ = 350 70
5 × 7 = 35, so 5 × 70 = 350. The missing number is 70.
Multiples of 10 — Missing Factor: a common mistake to watch for
Kids sometimes find 7 and forget that the missing number is 70.
Multiples of 10 — Missing Factor: how to help at home or in class
Start from one known fact, like 6 × 4 = 24, and ask your child to build as many tens versions as possible, such as 6 × 40 = 240 and 60 × 4 = 240. Then hide a number in each and swap papers to solve. Looking for the base fact hiding inside each problem is the whole skill. Once it is spotted fast, the same facts will turn up again in division.
What is on these Multiples of 10 — Missing Factor worksheets
This set has 15 different worksheets for 3rd grade, with 21 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Find the missing number.”
Example questions like the ones on these worksheets, with their answers:
- __ × 50 = 1503
- 2 × __ = 10050
- 6 × __ = 24040
- __ × 90 = 7208
- 5 × __ = 40080
- __ × 20 = 1206
- __ × 60 = 4207
- __ × 30 = 1806
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers