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65 2.6简便运算

展开全部65除以1.3再乘以2

=(50+15)÷25=50÷25+15÷25=2+3/5=2.6

0.65先乘100再加0.65乘4

65÷2.6=25

98*65+130 =(98+2)*65 =100*65 =6500 你好,本题已解答,如果满意 请点右上角“采纳答案”.

44.6-44.6÷2.6=27.4461538462

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 * 49/9 - 4/3 5. 8/9 * 15/36 + 1/27 6. 12* 5/6 2/9 *3 7. 8* 5/4 + 1/4 8. 6÷ 3/8 3/8 ÷6 9. 4/7 * 5/9 + 3/7 * 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 * 5/6 + 5/6

=2.6*13/65=2.6*1/5=2.6*2/10=0.52

=64*2.5*635+2.5*635=160*635+2.5*636-2.5=8*127*100+1570-2.5=8*125*100+8*2*100+1567.5=100000+1600+1567.5=103167.5

65÷25 =13*5÷5÷5 =13*5÷5÷5 =13÷5 =2.6

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