Order of operations
Enter in parentheses to make this equation true:
2 x 5 + 7 = 24
2 x (5 + 7)
Paxton had 49 ounces of juice. He poured 7 ounces in each of his friends cups. How many cups did he pour?
49 divided by 7 = 7 cups
7 x 5 = (3 x 5) + (4 x 5) is what math property?
The distributive property
If Christine earns $5 each week and she saves for 7 weeks, would she have enough money to buy a pair of shoes that cost $42? Explain why or why not.
No she would not have enough money because 5 x 7 = 35. She will need 7 more dollars.
72 divided by 9= ?
8
Put parenthesis in the following equation to make it true:
9 + 6 x 2 = 30
(9 + 6) x 2 = 30
Piper uses 6 beads for each bracelet. If she wants to make bracelets for 5 of her friends, how many beads should she buy?
6 x 5 = 30 beads
5 x 2 = 2 x 5 is what property?
The commutative property
Ted buys 6 packs of hot dogs. Each pack contains 9 hot dogs. After the cookout, there are 16 hot dogs left. How many were eaten?
6 x 9 = 54
54 - 16 = 38 hot dogs were eaten
100 divided by 10 = ?
10
Put parenthesis in the following equation to make it true:
9 + 1 x 6 = 15
9 + (1 x 6) = 15
Dan earns $6 each week. How many weeks will it take him to earn $54?
54 divided by 6 = 9 weeks
(3 x 2) x 4 = 3 x (2 x 4) is what property?
The associative property
Sam made a batch of 90 cookies. As he was taking them to the table, he dropped 9 of them. He then put 9 on each plate. How many plates does he need?
90 - 9 = 81
81 divided by 9 = 9 plates
Odd number x odd number = even or odd number?
Odd
Put parenthesis in the following equation to make it true:
7 x 5 + 6 = 41
(7 x 5) + 6 = 41
Kathi uses 8 scraps of fabric for one quilt block. How many scraps will she need to make 6 blocks?
8 x 6 = 48 scraps
5 x 1 = 5 or n x 1 = 1 is what property?
The identity property
Charlie has 51 pictures. He puts 5 pictures on a each page of a photo album. How many pictures does he have left over if he fills up 8 pages?
5 x 8 = 40
51 - 40 = 11 pictures
Odd number x even number = even or odd number?
Even
Put parenthesis in the following equation to make it true:
4 + 7 x 3 = 25
4 + (7 x 3) = 25
Susan spends 7 min in each store. How many stores did she go to if she was gone for 63 minutes?
63 divided by 7 = 9 stores
True or false:
5 x 0 = 0 or anything divided by 0 equals 0 is called the zero property.
True
Tuck buys his two cats 3 packs of toys. Each pack has 6 toys. How many toys will each of his cat get?
3 x 6 = 18
18 divided by 2 = 9
Even number x even number = even or odd number?
Even