Write Numerical Expressions
Write a numerical expression to model the words. Divide 60 by 5.
60 ÷ 5
Compare the numerical expressions.
24 + 7 and 9 × (24 + 7)
9 × (24 + 7) is 9 times as great as 24 + 7.
3 × 8 – 6 × 3
6
Use parentheses to rewrite the numerical expression to have the given value.
36 ÷ 9 + 3 – 2 value: 1
36 ÷ (9 + 3) – 2
Define evaluate.
to find the value of a numerical expression
Write a numerical expression to model the words. Divide 10 by the difference of 5 and 3.
10 ÷ (5 – 3)
Compare the numerical expressions.
12 – 7 and 4 × (12 – 7)
4 × (12 – 7) is 4x greater than 12 -7
5 + 3 × 4 + 1
18
Use parentheses to rewrite the numerical expression to have the given value.
12 – 3 × 8 – 6 value: 66
(12 – 3) × 8 – 6
Define numerical expression.
a mathematical phrase that uses only numbers and operation signs
Write a numerical expression to model the words.
Multiply 2 by the sum of 8 and 4.
(8 + 4) × 2
3 × (21 + 4) and 21 + 4
3 × (21 + 4) is 3 times as great as 21 + 4
Solve. (5 + 3 + 6) x 4
96
Use parentheses to rewrite the numerical expression to have the given value.
15 + 17 ÷ 8 – 4 value: 8
(15 + 17) ÷ (8 – 4)
Define order of operations.
a special set of rules which gives the order in which calculations are done in a numerical expression.
Masha is training for a marathon. She is doing tempo runs to increase her speed. In tempo runs, a runner varies their pace during the run. Masha jogs 1 mile, then runs at a fast pace for 11 miles. She finishes by walking 2 miles to cool down. Write a numerical expression to model the number of miles Masha runs, walks, or jogs.
1 + 11 + 2
What is the relationship between
7 × (18 – 5) and 18 – 5?
7 × (18 – 5) is 7 times as great as 18 – 5
90 ÷ {[2 × (4 + 1)] + 5}
90
Use parentheses to rewrite the numerical expression 25 – 4 × 3 + 2 to have a value of 11.
25 – (4 × 3 + 2)
Define G.E.M.S
Grouping,
Exponents,
Mult./Div.
Sub./Add
One small airplane has 44 seats. The flight crew sits in two of these seats. The remaining seats are divided equally into 7 rows for passengers. Explain how you would write a numerical expression to model the number of seats in each passenger row.
(44 – 2) ÷ 7
40 × 5 and 40 × 20
40 × 20 is four times as great as 40 × 5
Rewrite (4 + 2) × 3 using the Distributive Property, then evaluate.
(4 × 3) + (2 × 3); 18
Dan has a flower shop. He has a display of 36 roses. He sells 3 bouquets of 4 roses on Monday and 2 bouquets of 5 roses on Tuesday. What expression models the number of roses Dan has left in the display?
36 – (3 × 4) – (2 × 5)
Define P.E.M.D.A.S
Parenthesis,
Exponents,
Multiplication,
Division,
Addition,
Subtraction