Tính nhanh
2016+84+101+91+99
2016+83x2017+2017x16
2016+84+101+91+99
=(2016+84)+(101+99)+91
=2100+200+91
=2391
2016+83x2017+2017x16
=2017-1+83x2017+2017x16
=2017x(1+83+16)-1
=2017x100-1
=201701
2016+84+101+91+99
=(2016+84)+(101+99)+91
=2100+200+91
=2391
2016+83x2017+2017x16
=2017-1+83x2017+2017x16
=2017x(1+83+16)-1
=2017x100-1
=201701
2016 + 84 + 101 + 91 + 99
= ( 2016 + 84 ) + ( 101 + 99 ) + 91
= 2100 + 200 + 91
= 2300 + 91
= 2391
2016 + 83 x 2017 + 2017 x 16
= 2017 x ( 83 + 16 ) + 2016
= 2017 x 99 + 2016
= 199683 + 2016
= 201699
k mk nha
Câu thứ 1: 2401
Câu thứ 2: 6720
Tính nhanh :
\(2016+84+101+91+99.\)
\(=\left(2016+84\right)+\left(101+99\right)+91\)
\(=2100+200+91\)
\(=2300+91\)
\(=2391\)
\(2016+83.2017+2017.16\)
\(=2017-1+\left(83+16\right).2017\)
\(=2017.\left(1+83+16\right)-1\)
\(=2017.100-1\)
\(=201700-1\)
\(=201699\)
2016 + 84 + 101 + 91 + 99
= 2100 + 101 + ( 91 + 99 )
= 2100 + 101 + 190
= 2100 + 190 + 101
= 2290 + 101
= 2391
2016 + 83 x 2017 + 2017 x 16
= 2016 + ( 83 + 16 ) x 2017
= 2016 + 99 x 2017
= 2016 + 199683
= 201699
Mk cx ko biết đúng hay sai ở ý b nữa nếu đúng thì mk nha
a) 2016 + 84 + 101 + 91 + 99
= 2016 + 83 x 2017 + 2017 x 16
= 2016+84+101+91+99
= ( 2016 + 84 ) + ( 101 + 99 ) + 91
= 2100 + 200 + 91
= 2391
b) 2016 + 83 x 2017 + 2017 x 16
= 2017 - 1 + 83 x 2017 + 2017 x 16
= 2017 x ( 1 + 83 + 16 ) - 1
= 2017x 100 - 1
= 201701
\(2016+84+101+91+99\)
\(=\left(2016+84\right)+\left(101+99\right)+91\)
\(=2100+200+91\)
\(=2391\)
^ _ ^
Tính nhanh
2016+84+101+91+99
2016+83x2017+2017x16
2016+84+101+91+99
=(2016+84)+(101+99)+91
=2100+200+91
=2391
2016+83x2017+2017x16
=2017-1+83x2017+2017x16
=2017x(1+83+16)-1
=2017x100-1
=201701
2016+84+101+91+99
=(2016+84)+(101+99)+91
=2100+200+91
=2391
Tính nhanh
2016+84+101+91+99
2016+83x2017+2017x16
2016+84+101+91+99
=(2016+84)+(101+99)+91
=2100+200+91
=2391
2016+83x2017+2017x16
=2017-1+83x2017+2017x16
=2017x(1+83+16)-1
=2017x100-1
=201701