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Answer:
1.) - 9
2.) - 8
3.) 17
Step-by-step explanation:
1. ( − 7) − (4 − 2)
Solution:
( − 7) − (4 − 2)
Apply the PEMDAS rule.
(Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)
= - 7 - (2)
= - 7-2
= -9
2. (22 − 3) − (32 − 5)
Solution:
Apply the PEMDAS rule.
(Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)
=(22 − 3) − (32 − 5)
= (19) - (27)
= 19-27
= - 8
3. (10 − 4 − 2) − (3 + 6 − 22)
Solution:
(10 − 4 − 2) − (3 + 6 − 22)
Apply the PEMDAS rule.
(Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)
= (10-6) - (9-22)
= (4) - (-13)
=4+13
=17