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0
2 tháng 2 2023
a] -567 + 113 - 113567 - 2011
= -454 - 113567 - 2011
= -114021 - 2011= -116032
B] -137 x [52 + 47+1]
= -137 x 100
= -13700
C] 15 x [16 - 222] - 16 x [222 + 15]
= 15 x [-206] - 16 x 237
= -3090 - 3792
= -6882
22 tháng 2 2015
15.(16-222)-16.(15-222)
=15.16-15.222-(16.15-16.222)
=15.16-15.222-16.15+16.222
=-15.222-16.222
=222.(-15+16)
=222.1
=222
TM
2 tháng 2 2023
\(15\times\left(16-222\right)-16\times\left(222+15\right)\)
\(=15\times16-15\times222-16\times222-16\times15\)
\(=\left(15\times16-16\times15\right)-\left(15\times222+16\times222\right)\)
\(=0-222\times\left(15+16\right)\)
\(=-222\times31=-6882\)
2 tháng 2 2023
15×(16−222)−16×(222+15)15×(16−222)−16×(222+15)
=15×16−15×222−16×222−16×15=15×16−15×222−16×222−16×15
=(15×16−16×15)−(15×222+16×222)=(15×16−16×15)−(15×222+16×222)
=0−222×(15+16)=0−222×(15+16)
=−222×31=−6882
4 tháng 6 2021
Giải;
1) \(347.222-222.\left(216+184\right):8\)
\(=347.222-222.400:8\)
\(=347.222-222.50\)
\(=222.\left(347-50\right)\)
\(=222.297\)
\(=65934\)
2) \(132-\left[116-\left(132-128\right).22\right]\)
\(=132-\left[116-4.22\right]\)
\(=132-\left[116-88\right]\)
\(=132-28\)
\(=104\)
3) \(16:\left\{400:\left[200-\left(37+46.3\right)\right]\right\}\)
\(=16:\left\{400:\left[200-\left(37+138\right)\right]\right\}\)
\(=16:\left\{400:\left[200-175\right]\right\}\)
\(=16:\left\{400:25\right\}\)
\(=16:16\)
\(=1\)
4) \(\left\{184:\left[96-124:31\right]-2\right\}.3651\)
\(=\left\{184:\left[96-4\right]-2\right\}.3651\)
\(=\left\{184:92-2\right\}.3651\)
\(=\left\{2-2\right\}.3651\)
\(=0.3651\)
\(=0\)
5) \(46-\left[\left(16+71.4\right):15\right]-2\)
\(=46-\left[\left(16+284\right):15\right]-2\)
\(=46-\left[300:15\right]-2\)
\(=46-20-2\)
\(=24\)
6) \(3^3.18+72.4^2-41.18\)
\(=18.\left(27-41\right)+72.16\)
\(=18.-14+1152\)
\(=-252+1152\)
\(=900\)
4 tháng 6 2021
Giải: (tiếp)
7) \(\left(56.46-25.23\right):23\)
\(=\left(2576-575\right):23\)
\(=2001:23\)
\(=87\)
8) \(\left(28.54+56.36\right):21:2\)
\(=\left(1512+2016\right):21:2\)
\(=3528:21:2\)
\(=84\)
9) \(\left(76.34-19.64\right):\left(38.9\right)\)
\(=\left(2584-1216\right):342\)
\(=1368:342\)
\(=4\)
10) \(\left(2+4+6+...+100\right).\left(36.333-108.111\right)\)
\(=\left(2+4+6+...+100\right).\left(11988-11988\right)\)
\(=\left(2+4+6+...+100\right).0\)
\(=0\)
11) \(\left(5.4^{11}-3.16^5\right):4^{10}\)
\(=5.4^{11}:4^{10}-3.16^5:4^{10}\)
\(=5.4-3.1\)
\(=20-3\)
\(=17\)
12) \(7256.4375-725:3650+4375.7255\)
\(=4375.\left(7256+7255\right)-\dfrac{29}{146}\)
\(=4375.14511-\dfrac{29}{146}\)
\(=63485624,8\)
Câu 12 ko chắc!
E2
1
2 tháng 1 2016
Bài 1:
a) -567 - (-113) + (-113 + 567) - 2009
= [(-567) + 567] + [(-113) + (-113)] - 2009
= 0 + (-226) - 2009
= -226 - 2009
= -2235
\(15.\left(16-222\right)-16.\left(15-222\right)\)
\(=15.16-15.222-16.15+16.222\)
\(=\left(15.16-16.15\right)-\left(15.222-16.222\right)\)
\(=0-\left[222.\left(15-16\right)\right]\)
\(=0-\left[222.\left(-1\right)\right]\)
\(=0-\left(-222\right)\)
\(=0+222\)
\(=222\)
15( 16 - 222 ) - 16(15 - 222 )
= 15 . 16 - 15 . 222 - 16 . 15 - 16 . 222
= ( 15.16 - 16.15 ) - ( 15.222 - 16.222 )
= 0 - 222.( 15 - 16 )
= 0 - 222. ( - 1 )
= 0 - ( - 222 ) = 222