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简便计算5.74+2.68+4.26

5.74+2.68+4.26 =(5.74+4.26)+2.68 =10+2.68 =12.68 你好,本题已解答,如果满意 请点右上角“采纳答案”。

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

4.26 (5.74-0.26)简便 4.26 (5.74-0.26) =4.26-0.26+5.74 =4+5.74 =9.74

16.27-4.26+13.73-5.74的简便计算 (16.27+13.73)-(4.26+5.74) =30-10 =20

9.99-4.26+90.01-5.74 =9.99+90.01-(4.26+5.74) =100-10 =90

①5.74-2.42+3.26-4.58=5.74+3.26-(2.42+4.58),=9-7,=2;②9999×1111+3333×6667=(3333×3)×1111+3333×6667=3333×3333+3333×6667=3333×(3333+6667)=3333×10000=33330000;③0.49×3500+490×1.2+4.9×520+49=49×35+49×12+49×52+49,=(35+12+52+...

(1)0.36×1.5×0.4,=0.36×(1.5×0.4),=0.36×0.6,=0.216;(2)0.05×3.2×40,=(0.05×40)×3.2,=2×3.2=6.4;(3)26×15.7+15.7×74,=(26+74)×15.7,=100×15.7,=1570;(4)3.78×0.5-0.65,=1.89-0.65,=1.24;(5)3.98+13.4×0.24,=3.9...

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

9.99-4.26+90.01-5.74 =9.99+90.01-(4.26+5.74) =100-10 =90

6.5×16+74×4 =6.5×4×4+74×4 =26×4+74×4 =(26+74)×4 =100×4 =400

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