Question

implify the following numerical expressions:
180 - [24 - {16 - (9-1)}]
120+ [14 x {20 - (20 + 4)}]
678 - [5 + 3 of (25 – 2 x 10)]
1​

Answer 1

Answer:

180 - [24 - {16 - (9-1)}]

= 180-[24-{16-8}]

= 180-[24-8]

= 180- 16

= 164

120+ [14 x {20 - (20 + 4)}]

= 120+[14×{20-24}]

= 120+[14×{-4}]

= 120+[-56]

= 120-56

= 64

678 - [5 + 3 of (25 – 2 x 10)]

= 678-[5+3 of 5]

= 678- 20

= 658

Answer 2

Answer:

1. 180 - [ 24 - {16 - (9-1)}]

=180 - [24 - {16-8}]

= 180 - [24 - 8]

= 180 - 16

= 164

2. 120 +[14* {20 - (20+4)}]

= 120 + [ 14 * {20 - 24}]

= 120 + [ 14 * (-4)]

= 120 +(- 56)

=120 - 56 = 64