Question

100-18+72:9*8=? 100-(18+72):9*8=?

Answer 1

1.    100-18+72:9*8=146
1) 72:9=8   2)8*8=64   3) 100-18=82   4)82+64=146
2.    100-(18+72):9*8=20
1)  18+72=90    2) 90:9=10   3)10*8=80   4) 100-80=20

Answer 2

100-18+72:9*8=72:9=8*8=64/100-18=82+64=146
100-(18+72):9*8=18+72=90:9=10*8=80/100-80=20

Answer 3

Using the order of operations (also known as PEMDAS or BODMAS), we perform the operations in the following order:

1. Parentheses
2. Exponents
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Using this rule, we can evaluate the expressions:

For 100-18+72:9*8=?

1. 72 ÷ 9 = 8
2. 8 × 8 = 64
3. 100 - 18 = 82
4. 82 + 64 = 146

Therefore, 100-18+72:9*8=146.

For 100-(18+72):9*8=?

1. 18 + 72 = 90
2. 90 ÷ 9 = 10
3. 10 × 8 = 80
4. 100 - 80 = 20

Therefore, 100-(18+72):9*8=20.