Maths - Estimation

    Cards (7)

    • Makes the numbers easier to work with
    • Rounds numbers to 1 significant figure
    • Dividing by 1/2 is the same as multiplying by 2
    • Dividing by 1/5 is the same as multiplying by 5
    • It is a mental calculation
    • The answer will be an estimate
    • Estimating helps us check if our answers are reasonable or not
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