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简便计算5.74+2.68+4.26

4.26 4.15 5.74 5.85简便计算 4.26 4.15 5.74 5.85 =(4.26+5.74)+(4.15+5.85) =10+10 =20

16.27-4.26+13.75-5.74 =(16.27-4.26)+(13.75-5.74) =12.01+8.01 =20.02

5.74+3.26-(2.24+4.58)=9-6.82=2.18

5.526-4.84+4.474-3.16 =(5.526+4.474)-(4.84+3.16) =10-8 =2

(1)12.74- 1 8 +2.26-9.875,=12.74-0.125+2.26-9.875,=(12.74+2.26)-(0.125+9.875),=15-10,=5;(2)4.8×3.9+6.1×4 4 5 ,=4.8×3.9+6.1×4.8,=4.8×(3.9+6.1),=4.8×10,=48;(3)(2.5-3.2× 5 16 )÷(4 8 15 ÷3.4),=(2.5-1)÷...

5.526-4.84+4.474-3.16=2 64x99+64=6400 35x(3/35-2/53)x53=1 1-1/2+5/6-7/12+9/20-11/30=53/60

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