3.6×100= 24×5= 0.04×1000= 0.3÷=
1+80%= 0.5×0.4= 0×94= ÷3=
3.14×20= 2×= 1+= ()×9=
72÷= 1.5×100= 1.25×8= 99×0.8+0.8=
6.3+3.07=
3.2÷1%=
9-9÷12=
33+42=
0.24t:1.2kg=
2.5×0.4=
1÷10%=
0.32=
9.2×7.1
6.42÷0.8≈
1-1÷8=
=
0.375×=
3.14×20= + = 0.5÷0.01= 0.32× =
21÷21%= × = 6-3 = ÷ =
0.8+1.2=
4÷5%=
7.5×=
0.25×12×4=
2.1÷=
-0.2=
9×-=
×3÷×3=