17.02-10.98= 8.21+0.908=
100-9.375= 15.26+7.8=
4.38-3.28=
10-7.5=
0.32+3.2=
2.5÷100=
0.46×1000=
120÷5÷2=
2.036≈ 38.763≈
①
②6.875﹣
③372÷25÷0.4
④77×