×4= +37.5%= -= 0.7÷(1-30%)=
÷= 3.14×52= ×= 0×+2×=
= = ×0= =
×12= = 45×= ×=
36× = 18÷ = 7× = =
动物
只数
32
24
10
(只)
①
②36×()
③
④
⑤3.24×0.76+3.24×0.24
⑥