15×10%= 1-8%= 100×43%= 80×50%=
3÷10%= 1+20%= 25%×10= 5÷5%=
① 12.5×32×2.5 ②
③ ④
1.8x+x=42
6+0.3x=69
1+x=1.6 25%x-9%x=48 3.2:x=:
22.5+2.25= 6.4×25%= 9.3÷0.03= 1÷×= 1-1÷9=
50÷10%= 2.01-1.21= 1-÷= 1÷0.875= 0.32-0.22=
420 - 190= 17.88+0.2= 2.5×0.4= 1÷0.2=
= =
①
②6-4.92=
③25×0.7×4=
④+0.5=
⑤3-=
⑥6.3÷0.21=
⑦1-1÷=
⑧(0.6-)×16=