① ② ③ ④
4500克4千克 398×52000
120÷6120÷2÷3
× ÷
13× 12× ×
① ×5= ② = ③ ×0.36= ④ ×60%=
⑤ ÷8= ⑥12 = ⑦ = ⑧ =
①
②
③
④
⑤
⑥