97×6= 360×8= 10元-3.7元=
500-378=
485+268=
※609+235=
40×4= 32×3= 250÷5= 0÷6=
8×500= 34×2= 300×9= 4×63= =
84÷4= 80÷2= 2000÷5= 640÷8= =
①670-395=
②*600-253-127= 验算:
③635-(329+135)=
④238+421+147=
960﹣356﹣208=
298+303+255=
389+360﹣147=
803-207= ÷5= 798+150= + =
0.25×8= 1.5- = 7.5÷ = 0.77+0.3=
9.8-8= × = 45.54÷45= 24× =