直接写出得数.69÷3= 201×4= 640÷8= 27×3=85÷5= 123×3= 91÷7= 36×3=800×5= 8×9+8= 3×12﹣2= 20﹣80÷8=
脱式计算,能简算的要简算. (1)10.5+0.5÷0.5 (2)105×7.3﹣7.3×4﹣7.3 (3)29.07﹣22.78÷3.4 (4)4.8×0.25 (5)0.8×(12.5﹣1.25)
用简便方法计算 8.8×0.1252.5×1.25×327.6×5.3+3.7×7.6 37÷0.25÷43.85×101﹣3.85(23+4.6)÷2.3.
6.36﹣2.22+2.64﹣0.78 12.5×(8﹣0.8)×4 1.25×6.4×0.25×0.2 7.5×10﹣7.5×6.5+7.5×0.5 (2.6×1.5+1.1)﹣2.5×8 8÷[(40.75﹣9.5)×0.4]﹣0.6.
怎样计算简便就怎样计算. 5.5×13.7+6.7×5.53.8+4.29+5.71+4.2 102×4.5 0.125×32×0.25108.8﹣(97+8.8) 25.7+37.8﹣5.7.
脱式计算,能简算的要简算 0.76×5.8+0.76×4.21.25×13.7×810﹣6.8﹣3.2 5.81+8.3+4.19+11.70.4×(2.5+0.25)3.78﹣1.46+1.54.