1.241.76目录
我们要计算1.24和1.76的和。
数学上,我们用加法来表示两个数的和:
1.24 1.76
计算结果为:3
所以,1.24和1.76的和是:3
0.4×125×25×0.8
=(0.4×25)×(125×0.8)
=10×100=1000
1.25×(8 10)
=1.25×8 1.25×10
=10 12.5=22.5
9123-(123 8.8)
=9123-123-8.8
=9000-8.8
=8991.2
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
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
1.24 0.78 8.76
=(1.24 8.76) 0.78
=10 0.78
=10.78
933-157-43
=933-(157 43)
=933-200
=733
4821-998
=4821-1000 2
=3823
I32×125×25
=4×8×125×25
=(4×25)×(8×125)
=100×1000
=100000
9048÷268
=(2600 2600 2600 1248)÷26
=2600÷26 2600÷26 2600÷26 1248÷269
=100 100 100 48
=348
2881÷43
=(1290 1591)÷434
=1290÷43 1591÷43
=30 37
3.2×42.3×3.75-12.5×0.423×16
=3.2×42.3×3.75-1.25×42.3×1.6
=42.3×(3.2×3.75-1.25×1.6)
=42.3×(4×0.8×3.75-1.25×4×0.4)
=42.3×(4×0.4×2×3.75-1.25×4×0.4)
=42.3×(4x0.4x7.5-1.25x4x0.4)
=42.3×[4×0.4×(7.5-1.25)]
=42.3×[4×0.4×6.25]
=42.3×(4×2.5)
=4237
1.8 18÷1.5-0.5×0.3
=1.8 12-0.15
=13.8-0.15
=13.65
6.5×8 3.5×8-47
=52 28-47
=80-47
(80-9.8)×5分之2-1.32
=70.2X2/5-1.32
=28.08-1.32
=26.76
8×7分之4÷[1÷(3.2-2.95)]
=8×4/7÷[1÷0.25]
=8×4/7÷4
=8/7
2700×(506-499)÷900
=2700×7÷900
=18900÷900
=21
33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5
=33.02-23.02
=10
(1÷1-1)÷5.1
=(1-1)÷5.1
=0÷5.1
=0
18.1+(3-0.299÷0.23)×1
=18.1+1.7×1
=18.1+1.7
=19.8
祝开心~~!O(∩_∩)O~~望采纳~~
2.5x0.73X0.04=2.5X0.04X0.73=0.1X0.73=0.073
1.24X8.3 8.3X1.76=8.3X(1.24 1.76)=8.3X3=24.9(提公因式)