Complete the equation. What property is shown?
56 x ____ = 0
56 x 0 = 0 Multiplication property of zero.
14 - 2 x 7
0
Write the words as an expression.
Multiply 8 by the difference of 54 and 49.
8 x (54 - 49)
Why is it important to know PEMDAS?
So you can complete each step to correctly solve an equation.
Complete the equation. What property is shown?
8 + (24 + 35) = (24 + 8) + ____.
8 + (24 + 35) = (24 + 8) + 35. Associative Property of addition
49 ÷ (3+4) + 5
12
Write the words as an expression.
Subtract 58 from 94, then divide by 4.
What is the saying we use to remember the correct Order of Operations?
Please Excuse My Dear Aunt Sally.
3 x 5 x 11 = 11 x 3 x _____.
3 x 5 x 11 = 11 x 3 x 5. Communitive property of multiplication.
56 ÷ (4+4) + 3 x 2
13
5 + 14 ÷ 2 × 5 - 10
30
What does product, quotient, sum, and difference mean?
The ANSWER to a multiplication, division, addition, and subtraction problem.
What if you have subtraction before addition?
Complete subtraction, if it comes first, from left to right.
Use Distributive property to find the product.
8 x 64 =
8 x 64 = (8 x 60) + (8 x 4)
512
[20 – (5+3) x 2] + 4
8
(4-1) + (5+ 11) - (7 x 2) =
5
Write the expression in words.
45 + (7 x 8)
Add 45 to the product of 7 and 8.
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?
I went from left to right without using the correct order of operations.
Use Distributive property to find the product.
57 x 9 =
57 x 9 = (50 x 9) + (7 x 9)
513
(5 x 4) – 6 ÷ (2 + 16)
5 x [10- (6 +3) + (2 x 3)] - 20 =
15
Write the expression in words.
(18 % 2) - 5
Subtract 5 from the quotient of 18 and 2.