8.47﹣3.98=
0.125+=
4.5×=
×0.25+×0.25=
1.25×0.16×8=
1-23% -24%=
25×8=
25×12=
25×40=
120×4=
12×20=
12×2=
÷= ×= 1.02﹣0.43= 597×8≈
126÷3= 0.25×0.8= 1÷25%= 725÷92≈