Answer:
Question 9: 35 Question 10: 10
Step-by-step explanation:
Use BEDMAS (Brackets Exponents Division Multiplication Addition Subtraction).
Question 9:
Start with the brackets.
10 x 4 - (7 - 2)
= 10 x 4 - (5)
Then, multiply 10 and 4.
= 40 - 5
Solve the subtraction.
= 35
Question 10:
Start with the brackets.
1 - (2 - 3) + 8
= 1 - (-1) + 8
= 1 - - 1 + 8
(Two negatives = a positive)
= 1 + 1 + 8
Add the numbers.
= 10
