问题
计算题
看谁算得快。 | |||
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答案
(1)720÷[(12+24)×20]
=720÷(36×20)
=720÷720
=1
=420÷70×20
=6×20
=120
=640÷(16÷4)
=640÷4
=160
填空题
看谁算得快。 | |||
|
(1)720÷[(12+24)×20]
=720÷(36×20)
=720÷720
=1
=420÷70×20
=6×20
=120
=640÷(16÷4)
=640÷4
=160