发布网友 发布时间:2022-04-24 01:05
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热心网友 时间:2023-10-17 05:01
(1)25×29×4, =(25×4)×29, =100×29, =2900; (2)598×101, =598×(100+1), =598×100+598×1, =59800+598, =60398; (3)125×48, =(125×8)×6, =1000×8, =8000; (4)430-240÷20×7, =430-12×7, =430-84, =346; (5)530×[840÷(240-100)], =530×[840÷140], =530×6, =3180. |
热心网友 时间:2023-10-17 05:01
(1)25×29×4, =(25×4)×29, =100×29, =2900; (2)598×101, =598×(100+1), =598×100+598×1, =59800+598, =60398; (3)125×48, =(125×8)×6, =1000×8, =8000; (4)430-240÷20×7, =430-12×7, =430-84, =346; (5)530×[840÷(240-100)], =530×[840÷140], =530×6, =3180. |