Estimating the Sum of Decimals up to Two Decimal Places
Estimating the Sum of Decimals up to Two Decimal Places
Round decimals and estimate the sum. Compare the estimate to the precise sum in this activity.
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
自由形式の質問1
When would you round a number with a decimal to the benchmark values shown on the number line above?
テキストと数式入力
自由形式の質問2
Why does rounding to these benchmark values make it easier to add decimals?
テキストと数式入力