×=
÷=
××=
×÷=
〇1
〇
36÷〇36
×15= ×2= × = × =
÷ = ÷3= ÷5= ÷ =
×3=
×24=
×=
÷×÷=
÷=
×0.375=
××=
2.5×0.8= 1.02-0.43=
36×25%= 2.7- =
1÷ 3-
12.5×0.8= 5-1 = 0.98×99+0.98= 7÷ ×7× =
÷ = × = 0.72÷0.6= 1.4× - ×1.4=
4800÷240= 25×12= 16.5÷10%= + =
1- + = 0.3²= 1.02-0.43= 14÷ =
× = ×2÷ ×2=