题目内容
| 25×8×2= | 50×50-500= | 70-2×18= |
| 140×2-180= | 0×78×78= |
(1)25×8×2,
=200×2,
=400;
(2)50×50-500,
=2500-500,
=2000;
(3)70-2×18,
=70-36,
=34;
(4)140×2-180,
=280-180,
=100;
(5)0×78×78=0.
=200×2,
=400;
(2)50×50-500,
=2500-500,
=2000;
(3)70-2×18,
=70-36,
=34;
(4)140×2-180,
=280-180,
=100;
(5)0×78×78=0.
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