1樓:百度使用者
(1)7.06×
2.4-5.7,
=16.944-5.7,
=11.244;
(2)5.4×99+5.4,
=5.4×(99+1),
=5.4×100,
=540;
(3)9.6×72+9.6×28,
=9.6×(72+28),
=9.6×100,
=960;
(4)(1.25×2.5)×4,
=1.25×(2.5×4),
=1.25×10,
=12.5;
(5)10.4+72×0.81,
=10.4+58.32,
=68.72;
(6)11×0.6×0.4,
=6.6×0.4,
=2.64;
(7)(12.8+4.99)÷0.2,
=17.79÷0.2,
=88.95;
(8)1.25×8+2.5×4.4,
=10+2.5×0.4×11,
=10+11,
=21.
7.06×2.4-5.7用簡便方法怎麼算
2樓:無憂寶寶就是我
1.7.06×2.4-5.7
=(7+0.06)
×(2+0.4)-(5+0.7)
=14+2.8+0.12+0.024-5-0.7(調整一下位回置:14-5+2.8-0.7+0.12+0.024)
=9+2.1+0.144
=11.1+0.144
=11.244
2.用到公式為答:
(a+b)(c+d)
=ab+ac+bc+bd
3樓:辛新土
7.06×
bai2.4-5.7的簡便du方zhi
法如dao下回
7.06×答2.4-5.7
=(7+0.06)*(2+0.4)-5.
7=7*(2+0.4)+0.06*(2+0.
4)-5.7=14+2.8+0.
12+0.024-5.7=17.
944-5.7
=12.244
7.06x2.4-5.7怎麼簡便計算?
4樓:金融業肥潭
7.06x2.4-5.7
=(7+0.06)x(2+0.4)-5.
7=7x(2+0.4)+0.06x(2+0.
4)-5.7=14+2.8+0.
12+0.024-5.7=16.
944-5.7
=11.244
按照有括號的先算括號裡面的, 沒有括號時先算乘除法, 後算加減法的順序計算:
7.06x2.4-5.7
=16.944-5.7
=11.244
5樓:匿名使用者
7.06x2.4-5.7
=7x2.4+0.o6x2.4-5.7
=16.8+o.144-5.7
=16.8+0.144-5.7
=11.244
6樓:明溪
7.06×2.4-5.7的簡便計算方法如下圖所示:
(字太醜,請忽略)
7.06x2.4-5.7簡便計算
7樓:金融業肥潭
7.06x2.4-5.7
=(7+0.06)x(2+0.4)-5.
7=7x(2+0.4)+0.06x(2+0.
4)-5.7=14+2.8+0.
12+0.024-5.7=16.
944-5.7
=11.244
按照有括號的先算括號裡面的, 沒有括號時先算乘除法, 後算加減法的順序計算:
7.06x2.4-5.7
=16.944-5.7
=11.244
8樓:生邁尚欣美
7.06×2.4-5.7
=16.944-5.7
=11.244
7.06×2.4-5.7簡便計算
9樓:妙酒
7.06×2.4-5.7
=16.944-5.7
=11.244
10樓:姒迎寧寒鬆
7.06×2.4-5.7
=7.06x(2+0.4)-5.7
=7.06x2+7.06x0.4-5.7
=14.12+2.824-5.7
=16.944-5.7
=11.244
望採納@!謝謝!!
7.06×2.4-5.7脫式汁算是什麼?20分
11樓:風吹o_o涼
7.06×2.4-5.7
=(7+0.06)×2.4 -5.7
=7×2.4 + 6×2.4÷100 - 5.7=16.8 + 0.144 - 5.7
=11.244
7.06x2.4一5.7簡便方法
12樓:匿名使用者
採納我,系統將在2分鐘內給你最正確的答案和過程!
13樓:匿名使用者
沒有簡便方法吧。。。
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