计算:(能用简便方法的用简便方法算法)420×(37+56)425×99+42559×7+59×1173×57÷1323÷1528×521721÷56×922÷911.-六年级数学
题文
计算:(能用简便方法的用简便方法算法)
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答案
(1)420×(
=420×
=180+350 =530; (2)
=
=
=16; (3)
=
=
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题文
计算:(能用简便方法的用简便方法算法)
|
答案
(1)420×(
=420×
=180+350 =530; (2)
=
=
=16; (3)
=
=
|