3.6×10.9+1.2×67.3简便计算
3.6×10.9+1.2×67.3【11.5+一又十分之七×(508-四又五分之四)}÷(二又十分之三-1.1)...
3.6×10.9+1.2×67.3 【11.5+一又十分之七×(508-四又五分之四)}÷(二又十分之三-1.1)
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3.6×10.9+1.2×67.3
=1.2×(3×10.9)+1.2×67.3
=1.2×32.7+1.2×67.3
=1.2×(32.7+67.3)
=1.2×100
=120
【11.5+一又十分之七×(5.8-四又五分之四)}÷(二又十分之三-1.1)
=[11.5+1.7×(5.8-4.8)]÷(2.3-1.1)
=(11.5+1.7)÷1.2
=13.2÷1.2
=11
=1.2×(3×10.9)+1.2×67.3
=1.2×32.7+1.2×67.3
=1.2×(32.7+67.3)
=1.2×100
=120
【11.5+一又十分之七×(5.8-四又五分之四)}÷(二又十分之三-1.1)
=[11.5+1.7×(5.8-4.8)]÷(2.3-1.1)
=(11.5+1.7)÷1.2
=13.2÷1.2
=11
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