Question

初一有理数简便计算 高手帮忙

3.228x(-9)+(-3.272)x9-(-1.5)x9=

11.35x(-2/3)²+1.05x(-2²/9）-7.7x(-4/3²）=

215+126x214÷215x126+89=

要过程·要答案
赶紧来人啊

Answer 1

3.228x(-9)+(-3.272)x9-(-1.5)x9
=-3.228x9-3.272)x9+1.5x9
=(-3.228-3.272+1.5)x9
=5x9
=45

11.35x(-2/3)²+1.05x(-2²/9）-7.7x(-4/3²）
=11.35x4/9-1.05x4/9+7.7x4/9
=(11.35-1.05+7.7)x4/9
=18x4/9
=8

215+126x214÷215x126+89
=[215+126x(215-1)]÷(215x126+89)
=(215+126x215-126)÷(215x126+89)
=(126x215+89)÷(215x126+89)
=1

Answer 2

我

3.228x(-9)+(-3.272)x9-(-1.5)x9
=-3.228x9-3.272)x9+1.5x9
=(-3.228-3.272+1.5)x9
=5x9
=45

11.35x(-2/3)²+1.05x(-2²/9）-7.7x(-4/3²）
=11.35x4/9-1.05x4/9+7.7x4/9
=(11.35-1.05+7.7)x4/9
=18x4/9
=8

215+126x214÷215x126+89
=[215+126x(215-1)]÷(215x126+89)
=(215+126x215-126)÷(215x126+89)
=(126x215+89)÷(215x126+89)
=1

Answer 3

不知道