Multiplication
42 X 4 =
What is 168
18 X 45 =
What is 249?
840 / 7 =
192
An answer to an addition problem
What is a sum?
Dion's goal is to raise $500 for the art club by selling hats for $6 each. What is the least number of hats he must sell to reach that goal?
What is 84 hats?
500 / 6 = 83 R 2
or 6 X 83 = $498 you need 1 more hat to reach $500
5X 199=
What is 995?
43 X 77 =
What is 3,311?
7600 / 4 =
What is 1900?
An answer to a subtraction problem
What is a difference?
There are 4,115 people at the ball game. There are 4 times as many adults as there are children. How many children are at the ball game?
There are 823 children.
1 child to every 4 adults
823 X 4= 3,292 adults
823 children
3292 + 823 = 4115
1,603 X 6 =
What is 9618?
99 X 99 =
What is 9,801 ?
685 / 4 =
What is 27 R 2 ?
The answer to a multiplication problem
What is a product?
There are 9, 898 trees in a grove. There are twice as many grapefruit trees as there are lemon trees and twice as many orange trees as grapefruit trees. How many lemon trees are there?
There are 1,414 lemon trees.
1 lemon tree to 2 grapefruit trees .
4 orange trees to 2 grapefruit trees = 7
9, 898 / 7 = 1,414 lemon trees
8310 X 8 =
What is 66,480 ?
713 X 62 =
What is 44,206?
6878 / 9 =
What is 764 R 2 ?
An answer to a division problem
What is a quotient?
430 books are kept in 3 boxes. The second box has 25 fewer boxes that the first box and twice as many as the third box. How many are in the second box?
Use a bar graph to help solve the problem.
The second box has 162 books.
430-25 = 405 books
1 unit = 405 / 5 = 81 Then 81 X 2 = 162
See page 161 in TM
16,879 X 7 =
What is 118,153 ?
864 X 98 =
What is 84,672?
9975 / 2 =
What is 4987 R 1 ?
A step by step procedure for solving a problem
What is an algorithm ?
A vendor of the market is selling jam. She has 980 jars in total of huckleberry, blueberry. and peach jam. She has 75 fewer jars of blueberry than huckleberry jam. She has three time as many jars of peach jam than blueberry jam. How many jars of peach jam does she have?
She has 543 jars of peach jam .
980- 75 = 905
1 unit = 905 / 5 = 181
181 X 3 = 543