Question

Tính nhanh

45 + 45 * 45 - 45 *45

Answer 1

45+45*45-45*45=45+2025-2025=2070-2025=45

                    đáp số 45

Answer 2

45 + 45 x 45 - 45 x 45

= 45 + 45x(45 - 45)

= 45 + 0

= 45.

Answer 3

45 + 45 * 45 - 45 *45

=45 + 45 * 45 - 45 *45x1

=45*( 45+45-1)

=45*89

=4005

Answer 4

Trả lời:

45 + 45 . 45 - 45 . 45

= 45 ( 1 + 45 - 45 )

= 45 . 1

= 45

Hok tốt

Answer 5

45 + 45 * 45 - 45 *45

=45+45(45-45)=45+0

=45

Answer 6

45+45*45-45*45

=45+0=45

Answer 7

45 + 45 x 45 - 45 x 45

= 45. ( 1 + 45 - 45 )

= 45 x 1

= 45

Answer 8

45+45*45-45*45

=45+(45*45-45*45)

=45+0=45

Answer 9

45 + 45 * 45 - 45 *45

=45+2025-2025=2070-2025

=45

Answer 10

    45 + 45 x 45 - 45 x 45

= 45 + 45 x (45 - 45)

= 45 + 45 x 0

= 45 + 0 

= 45

Answer 11

45 + 45 x 45 - 45 x 45

= 45 x (1 + 45 - 45)

= 45 x 1

= 45

tk mik nhé

Answer 12

45 + 45 x 45 - 45 x 45

=45x ( 1+45-45)

=45x1

=45

Answer 13

45 vì 45+45*45- 45*45=45+(45*45-45*45) nên =45+0=45

Answer 14

\(45+45\times45-45\times45\)

\(=45+\left(45\times45-45\times45\right)\)

\(=45+0\)

\(=45\)

Answer 15

\(45 + 45 . 45 - 45 . 45\)

\(= 45 + ( 45 . 45 - 45 . 45 )\)

\(= 45 + 0\)

\(= 45\)