Which of the following expressions correctly use mental math to find ? Select all that

Question

apply.
(1 point)
4 × 59 4 × 59
(4 × 60) − (4 × 1) ( 4 × 60) - ( 4 × 1)
4 × (50 × 9) 4 × ( 50 × 9)
4 + (50 × 9) 4 + ( 50 × 9)
(4 × 50) + (4 × 9) ( 4 × 50) + ( 4 × 9)
4 + 50 + 9

Answer 1

The expressions that correctly use mental math to find the answer are:

(4 × 59) - This can be calculated by multiplying 4 by 50 (200) and adding 4 times 9 (36), which equals 236.

(4 × 59) - This can also be calculated by multiplying 4 by 60 (240) and subtracting 4 (236).

(4 × 60) - (4 × 1) - This can be calculated by multiplying 4 by 60 (240) and subtracting 4 (236).

4 × (50 × 9) - This can be calculated by multiplying 50 by 9 (450) and then multiplying the result by 4, which equals 1800.

(4 × 50) + (4 × 9) - This can be calculated by multiplying 4 by 50 (200) and adding 4 times 9 (36), which equals 236.

4 + 50 + 9 - This can be calculated by adding 4, 50, and 9, which equals 63.