Question

1 - 4 + 7 - 10 +...-100 +103

Answer 1

Ta có :

\(1-4+7-10+.....-100+103\)

\(=1+\left(-4+7\right)+\left(-10+13\right)+.....+\left(-100+103\right)\)

\(=1+3+3+....+3\)

\(=1+3.17\)

=52

Answer 2

Tính hợp lí 1-4+7-10+..............-100+103 - Online Math

Answer 3

Ta có:

1 - 4 + 7 - 10 + ... -100 + 103

= 1 + ( -4 + 7 ) + ( -10 + 13 ) + . . . + ( -100 + 103)

= 1 + 3 + 3 + ..... + 3

= 1 + 3.17 = 52