题目内容
36+145+64+55的简便算法是( )
| A.(36+145)+(64+155) | B.(36+64)+(145+55) |
| C.(36+55)+(145+64) |
36+145+64+55,
=36+64+145+55,
=(36+64)+(145+55),
=100+200,
=300;
故选:B.
=36+64+145+55,
=(36+64)+(145+55),
=100+200,
=300;
故选:B.
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