Multiplication
7 X 8
56
72 / 8
9
True or False? 1/2 = 4/8
True
Dana runs laps around her high school track. She runs 6 laps at an average of 3 minutes per lap. For how many minutes did Dana run
6 x 3 = 18 minutes
Order of Operations (the sequence)
What is PEMDAS:
Parentheses, Exponent, Multiplication, Division, Addition, Subtraction
14 X 10
140
120 / 4
30
True or false? 8/12 > 3/4
False; 8/12 = 2/3 and 2/3 < 3/4
Lee designed a bookshelf with 6 shelves and a frame. Each shelf weighs 12 pounds. The frame weighs 38 pounds.
Part A: How much do the shelves weigh altogether? Show your work.
Part B: What is the total weight of the shelves and frame? Explain your reasoning.
Part A: 6 x 12 =72
Part B: 72+38=110
Multiplying a sum by a number is the same as adding the partial products
A(B+C)
What is the Distributive Property
3 X 52
150 + 6 = 156
432 / 7
61 R5 or 61 5/7
Order from least to greatest; 1/8, 1/12, 1/4, 1/2
1/12, 1/8, 1/4, 1/2
Mike and Alice recycled 147 bottles altogether. Mike recycled 6 times as many bottles as Alice. How many bottles did Alice recycle.
147 / 6 = 24 R3
Changing the order of the factors does not change the product.
What is the Commutative Property of Multiplication
4 X 109
400 + 0 + 36 = 436
243/10
24 R3 or 24 3/10
Subtract. 4/5 - 2/3
2/15
Paul makes his meatloaf with 9/16 pound of beef and 3/8 pound of pork. How much more beef than pork does Paul use in his meatloaf?
Paul uses 3/16 pound more of beef in his meatloaf.
Collections that each have the same number of items.
What is equal groups
23 X 42
800+40+120+6= 966
462 / 30
15 R12 or 15 12/30 or 15 2/5
Multiply 2/3 x 3/5
6/15
Ana is reading a medical journal. Ana read 3 /10 of the journal on Saturday and 1/2 of the journal on Sunday. What fraction of the journal does Ana still need to read?
1/5
Two or more fractions that name the same part of a whole.
What are equivalent fractions