(2.65+2.77)/(1.98-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98)
=【2.62+(0.03+2.77)】/【(1+0.98)-0.98】
=【2.62+2.8】/【1-(0.98-0.98)】
=5.42/1
=5.42
(2.65+2.77)/(1.95-0.98)怎么简便计算
(2.65+2.77)/(1.98-0.98)
=(2.65+2.77)/1
=2.65+2.77
=2.65+2.35+0.42
=5+0.42
=5.42
1.98x47-0.98x47简便计算
1.98x47-0.98x47
解:简便计算
=(1.98-0.98)x47
=1x47
=47
祝学习进步。
1.98/125的简便计算
1.98/125
=(1.98*8)/(125*8)
=((2-0.02)*8)/1000
=(16-0.16)/1000
=15.84/1000
=0.01584
2.65/8+12.5简便计算
2.65/8+12.5
=2.65/8+(12.5×8)/8
=2.65/8+100/8
=102.65/8
=2053/160
=12.83125
0.98*4.6怎么简便计算
0.98*4.6
=(1-0.02)×4.6
=4.6×1-0.02×4.6
=4.6-0.092
=4.508
1/(1-0.98)简便计算
1/(1-0.98)
=1/0.02
=100/2
=50
3.85+1.98怎么简便计算
3.85+1.98
=3.85+(2-0.02)
=(3.85+2)-0.02
=5.85-0.02
=5.83
希望能帮到你!
0.98*12用简便计算怎么算
(1-0.02)×12
=12-0.24
=11.86
1.98^2 简便计算
(2-0.02)^2=2^2-2*2*0.02+0.02^2
=4-0.08+0.0004
=3.9204
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