Math · Age 10 · Reasoning With Operations
Comparing Methods for Calculations (Ex. 3)
Evaluate different calculation strategies and identify which are valid or most efficient.
Module
Reasoning With Operations
Age
Age 10
Duration
9 min
Questions
5
What's in this exercise
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Question 1
Multiple choice
Which shows 256 ÷ 8 using partitioning?
Question 2
Multiple choice
For 12 × 25, which statement is true?
Question 3
Multiple choice
Which is NOT a valid method for 400 ÷ 25?
Question 4
Sequence
Doubling: 5 ; 10 ; 20 ; ___ ; 80
Question 5
True or false
15 × 8 = 15 × 4 × 2.