0.1-0.01= 6.8÷10%= 3.6÷0.12= 398÷42≈
0.22= × = 24÷ = ×4÷ ×4=
①14.4﹣4.63÷1.6﹣2.37
②2.5×12.5×50×0.8
③÷[×(﹣)]
④65×+65×
①(4.5﹣3.2× )÷
②4.4×25
③ ×[ -( -25%)]
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)