12.68-22.78÷3.4的简便怎样算
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12.68-22.78÷3.4的简便怎样算
12.68-22.78÷3.4的简便怎样算
12.68-22.78÷3.4的简便怎样算
12.68-22.78÷3.4=12.68-6.7=5.98
12.68-22.78÷3.4
=10+2.68-22.78÷3.4
=34÷3.4+2.68-22.78÷3.4
=34÷3.4-22.78÷3.4+2.68
=11.22÷3.4+2.68
=(10.2+1.02)÷3.4+2.68
=3+0.3+2.68
=5.98