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grade 1 · WN-018

Subtract groups of ten

Use the value of tens to subtract without counting every one.

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Try with a hintFresh problem · seed 1791118437

Find 80 − 40.

Give me one hint

Think of 80 as 8 tens.

Your answer

It is always okay to go back to more help.

Math Lab is a working name for Ready Rung's separate math-learning product. Guided success and independent evidence are reported separately.