0.5÷ = × = 0.35÷ = 1.25÷ =
12÷30%= 0.4÷ = + = 25×40%=
① - -
②6.22×3.4+37.8×0.34
③ - + -
④9999×7+1111×37
⑤36×( - - )
⑥ ÷ ×