题目内容
脱式计算
| 306×3×4 | 900-25×5 | (620+180)×8 | 72×5÷4. |
(1)306×3×4,
=918×4,
=3672;
(2)900-25×5,
=900-125,
=775;
(3)(620+180)×8,
=800×8,
=6400;
(4)72×5÷4,
=360÷4,
=90.
=918×4,
=3672;
(2)900-25×5,
=900-125,
=775;
(3)(620+180)×8,
=800×8,
=6400;
(4)72×5÷4,
=360÷4,
=90.
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