8.04÷0.2= 9.5÷5= 8-3.2= 0.7×0.3=
3.57+1.43= 0.28÷7= 0.25×4= 6.4+3.6-4.9=
0÷19.8= 0.2×0.05= 0.6×1.5= 1.36+2.87+3.64=
t与4的和
t的4倍
t除以4的商
比t小4的数
t-4
t+4
4t
t÷4
1.5×4=
1.35+2.5=
1.03+3=
4.5-2.3=
0.3×0.8=
0÷5.23=
0.05×6=
5.1÷0.01=
0.61+99×0.61=
0.2×5÷0.2×5=
100×0.9 = 0.99÷0.01= 0 ÷4.5 +5.5 =
0.25×0.2×4 = 1.25×0.8= 0.45÷45 =
8a -7a = 0.5×4÷0.5×4 =
0.24×5= 0.72÷12= 0.8×12.5= 1÷0.25=
13.8×0= 0.81÷0.9= a-0.36a= 25×4÷25×4=
3.8+2.07= 3-1.98= 4.34×0= 5.5÷0.1=
4×0.25= 14÷0.07= 0.64÷0.8= 0.25×4÷0.25×4=