4.3+5.8= 3.6+6.4= 0.74﹣0.34= 0.9﹣0.25=
5×4= 0.21×3= 0.64÷0.8= 0.48÷0.12=
88÷8= 1.1×9= 1÷0.25= 0÷0.4=
15÷0.3×0.1= 0.4÷0.2= (0.7+0.8)×3= 7×1.2+0.8=
1.8×4﹣1.2= (2.6﹣1.8)×0.5= 4+3.2÷0.8= 0.72÷72﹣0.1=
7.5÷2.5﹣0= .