3.1+0.4= += 640÷16= ×3×4=
10÷= ×= 2.4×= 25×40%=
2+15%=
3+=
2÷1%=
125×8=
×=
6.9﹣1.4=
×3=
÷=
1.38﹣0.03=
÷ =
0.28× =
36×25%=
﹣ =
0.72÷0.04=
400÷25÷4=
0.3×2÷0.3×2=
98+136=
9﹣6.2=
2.5×8=
4÷0.5=
×10%=
10﹣0.86= × = 24× = 125%×8=
+ = ÷ = 0.62= 453÷52≈
46+25= 840÷60= 0.25×8= 2﹣= 4÷12=
15×20= ÷= 1×= 80×110%= 401÷50≈
277+168=
8﹣1.8=
2.5×8=
6.3÷ =
33×5.98≈
9+1÷10=
7÷0.01=
0.52﹣0.08=
=
5÷1%﹣5=
8×12.5%=
÷ =
9﹣0.54=
0.68+ +0.32=
8.8÷0.02=
﹣ =
×5.6=
3+ ﹣3+ =
2.5×4= ×= ÷= ﹣0.25=
﹣= 1﹣﹣= 1÷20%= 80%×=
4.68﹣4= += 0.8×= ÷= 0.42=
12.6÷3= ÷0.75= 3.8÷10%= 41×348×0= 1÷3×=