陕西延安小升初数学真题及答案
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发布时间: 2023-12-31 09:56:08
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34.解:① + + +
= + + +
=1+
= ;
② 12.5×8×4×0.25
=(12.5×8)×(4×0.25)
=100×1
=100;
③ 4.9×6.4+14×0.36-6.4×3.5
=4.9×6.4-6.4×3.5+14×0.36
=6.4×(4.9-3.5)+14×0.36
=6.4×1.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14.
35.(1)
(2)
(3)3
(4)
(5)
(6)
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