6.15x9.5一42脱式计算

6.15x9.4一42脱式计算6.15x9.4一42=57.81-*42=15.81 直接计算

6.15*9.4-42 =57.81-42 =15.81 你好,本题已解答,如果满意 请点右下角“采纳答案”.

42一(32.9一6.73)=42-32-0.9+6.73=16.73-0.9=15.83

6.15x8.4一42用简算脱式怎么样写6.15x8.4一42=51.66-42=9.66

6.15x9.4-42=6.15*(10-0.6)-4.2=61.5-3.69-4.=15.81

6.15*8.4-42=6.15*0.2*42-42 =1.23*42-42 =(1.23-1)*42 =0.23*42 =9.66.

6.15*9.4-42 =6.15*(10-0.6)-42 =61.5-3.69-42 =61.5-42-3.69 =19.5-3.69 =15.81

12.8+2.04*9.5脱式计算12.8+2.04*9.5=12.8+19.38=32.18 直接计算

6.15*4.08-42=25.092-42=-16.908

6.16x9.5-42=6.16x10-6.16x0.5-42=61.6-3.08-42=61.6-45.08=16.52

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