19.6+4.7=
27×48=
★563÷7=
①16×10= 20×40 = 8×1000= 67×100=
②
③0.3+0.5= 1.9-0.2= 2.2+4.3= 1-0.2=
41×13=
456÷3=
△745÷7=
①*840÷8=
②75×18=
③231÷3=
④*45×23=
①613÷3=
②82×64=
③528÷3=
④75×37=
⑤10-3.6=
⑥15.7+2.8=
加法算式:
乘法算式:
x
2
?
y
100
50