40×80= 14×5= 25×40= 9×70=
56×2= 8×120= 30×600= 31×4=
3.4+5.2= 0.7 +4.8= 0.65-0.34=
2.3+5.4=
12×0.01=
0.84÷12=
1.1-0.96=
1.25×5×2=
0.16×0.5 =
0.65÷5=
0.7+6.77=
2.3×3=
3.4+2.3+6.6=
12×5= 25×2= 5.6-4.4= 3.6+0.4= 4-2.3-1.7=
4+12.5= 5-3.6= 5×4+5×4= 1.4-0.8= 7.7-6.6=
0.6+0.6= 2.52+0.48= 12.8+15.4= 8.62-0.35=
4.7-1.2= 5.3-2.18= 20-0.7= 5.2-1.8=
150×30=
5×24=
120÷24=
230×30=
21×40=
560-70=
360-360÷6=
25×7×4=
5-1.9=
8.3-2.3=
0.27+0.6=
2.38+2.62=
9÷1000=
0.2×100=
2.5×0=
1.25×8=
①(-+)×24
②14.86﹣(6.28+2.36)﹣3.72
③÷[÷(-)]
④2.4×3.6+3.2×4.8
⑤+++......++
⑥××18×24
145+398= 6-0.6= 0.24×50= 3﹣3÷7= (+)×56=
1.25×6×8= = = ÷0.75= ×4÷×4=