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
??