口算
134﹣18= 1.01﹣0.98= ×= 1.5×4=
7.45+8.55= +×8= 2÷0.25+1.1= ×6÷×6=
5.76﹣(2.76+0.8)= 108×﹣10= 0.125×17×8= 0.43=
脱式计算(能简算的要简算).
×59 1﹣(+) 0.125×0.25×8×4
87.7×11﹣87.7 4÷1.25÷0.8 8.05﹣0.75﹣.
直接写出得数.
×= +=
3÷﹣÷3= ﹣÷5=
(﹣)×30= 9.1÷0.07=
××2= 1.01×23=
275﹣(167+275)= ×4÷4×=
口算.
80×20%= 24×0.2= 5﹣= ÷3= 32=
36÷12%= 1﹣0.3= 2.1+3.25= ×1.8= (0.2)2×52=