Mathematics
Multiplication & Division
Procedural
8–9 yrs
Unknown in Multiplication & Division
乘除法中的未知数
Description
Determine the unknown whole number in a multiplication or division equation relating three whole numbers (e.g. 8 × ? = 48, ? × 6 = 42)
Mastery Evidence
- Find the missing factor in 7 × ? = 63
- Find the missing dividend in ? ÷ 5 = 9
- Explain the strategy used (e.g. using the related multiplication fact)
Assessment Prompt
If your child sees '8 × ? = 48' or '? ÷ 6 = 7' written on paper, can they figure out what number goes in the blank?
Prerequisites 1
Division as Unknown Factor
求未知因数需要将除法视为求未知因数的问题
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No follow-up topics
