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Create an expression that represents the difference between 30 and the product of 4 and 3.
18
8 ÷ 2 - 3
1
Use parentheses to rewrite this expression so that it has a value of 30 when you evaluate it.
2 x (10 + 10) - 10
Write the number as a product of its prime factors.
27
3 x 3 x 3
Use parentheses to rewrite this expression so that it has a value of 7 when you evaluate it.
(4 x 3 + 2) ÷ 2
(20 - 4) ÷ 2
8
Dan is saving some money each week. The expression 7 x 5 - 9 models the amount of money Dan has left after buying a notebook.
How many weeks is Dan saving money before buying the notebook? What is the cost of the notebook?
Dan is saving money for 5 weeks.
The notebook costs $9.
Write the number 45 as a product of its prime numbers.
5 x 3 x 3
Create an expression that represents the difference of 10 and the sum of 2 and 4.
10 - (2 + 4)
48 ÷ (10 - 4 x 2)
24
6 + 28 ÷ 4 x 4 - 3
31
Write the number 33 as a product of its prime numbers.
3 x 11
8 x (35 ÷ 7 + 45) - 30
370
8 + 7 x 7 + 8 ÷ 2
61
Create an expression that represents the sum of 2 and 3 times the sum of 4 and 2
(2 + 3) x (4 + 2)
Write the number 42 as a product of its prime factors.
7 x 3 x 2
Create an expression that represents the product of 4 and 5 plus the product of 3 and 8.
(4 x 5) + (3 x 8)
OR
4 x 5 + 3 x 8
(12 x 9) - 8 + (24 ÷ 6)
104
Sally is saving some money each week. The expression 14 x 3 - 7 models the amount of money Sally has left after buying a toy.
How many weeks is Sally saving money before buying her toy? What is the cost of the toy?
Sally is saving money for 3 weeks.
The toy costs $7.
Write the number as a product of its prime factors.
24
3 x 2 x 2 x 2