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1a.
100 – 50 + 2 = + 2 =
1b.
100 – (50 + 2) = 100 – =
2a.
56 ÷ 2 + 5 = + 5 =
2b.
56 ÷ (2 + 5) = 56 ÷ =
3a. Find the value
40 – (5 + 5) =
3b. Find the value
430 – (100 – 20) =
3c. Find the value
460 + (780 – 250) =
4a. Find the value
9 × (86 – 16) =
4b. Find the value
800 ÷ (20 + 60) =
4c. Find the value
1000 ÷ (48 ÷ 6) =
5. Rita had a $100 bill. She bought a shirt that cost $25 and a sweater that cost $18. Write an expression with parentheses to find the amount of change she received, and then find the value.
Hint:
Money she had – (cost of shirt+ cost of sweater)
The amount of change she received is $
6. A chair costs $33 and a chair cushion costs $7. They are sold as a set. Mr. Tomas spent $240 on chair and cushion sets. Write an expression with parentheses to find the number of sets he bought, and then find the value.
Hint:
Money he spent ÷ (cost of chair+ cost of cushion)
Mr Tomas bought sets