49.7*8+2.4简算

来源:学生作业帮助网 编辑:作业帮 时间:2024/12/01 04:22:05
49.7*8+2.4简算
x)33ײ63y6IEv68ھajkg~OgX"njPaF310rPgs:Xk۟w=e{]l .slA 6bEH$ 15@؁0xT

49.7*8+2.4简算
49.7*8+2.4简算

49.7*8+2.4简算
=(50-0.3)x8+2.4
=50x8-0.3x8+2.4
=400-2.4+2.4
=400
有帮助请及时采纳~

=49.7x8+0.3x8
=8x(49.7+0.3)
=8x50
=400