初一数学计算题带答案急用。
2023-04-27
问题描述:
急需数学计算题带答案
最佳答案:
(1)1.25×(8+10)
=1.25×8+1.25×10
=10+12.5
=22.5
(2)9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2
(3)1.24×8.3+8.3×1.76
=8.3×(1.24+1.76)
=8.3×3=24.9
9999×1001
=9999×(1000+1)
=9999×1000+9999×1
=10008999
(4)14.8×6.3-6.3×6.5+8.3×3.7
=(14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
=8.3×(6.3+3.7)
=8.3×10
=83
(5)1.24+0.78+8.76
=(1.24+8.76)+0.78
=10+0.78
=10.78
(6)933-157-43
=933-(157+43)
=933-200
=733
(7)4821-998
=4821-1000+2
=3823
(8)132×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
(9)9048÷268
=(2600+2600+2600+1248)÷26
=2600÷26+2600÷26+2600÷26+1248÷269
=100+100+100+48
=348
(10)2881÷43
=(1290+1591)÷434
=1290÷43+1591÷43
=30+37
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