Match/Choose the math sentences that count up and back by tens.
47+40=88 57+30=87 46+10=56
56-10=46 87-40=47 87-30=57
Write the matching math sentences.
47+40=88 57+30=87 46+10=56
56-10=46 87-40=47 87-30=57
Write the matching math sentences.