Question

37*42-1461=
728/(617-526)=
1541/23-21*3=
900/15+640/16= вычислите

Answer 1

1. 728/(617-526)=8
1) 617-526=91
2) 728/91=8
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2. 1541/23-21*3=4
1) 1541/23=67
2) 21*3=63
3) 67-63=4
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3. 900/15+640/16=100
1) 900/15=60
2) 640/16=40
3) 60+40=100