Finding Unknown Addends
x + 4 = 10. What is x?
6
What is 11 x 4?
44
w x 3 = 18. What is w?
w = 6
What do we call the answer to a multiplication problem?
Product
What is 36 divided by 12?
3
n + 17 = 29 What is n?
12
What is 12 x 7?
84
5 x n = 45
n = 9
What do we call the answer to a division problem?
Quotient
What is 121 divided by 11?
11
35 + a = 62. What is a?
27
What is 11 x 12?
132
12 x a = 108
a = 9
What are the three parts to a division problem?
Dividend, divisor, and quotient
Fill in the blank 144 divided by ____ equals 12.
12
b + 246 = 500. What is b?
254
What is 12 x 12?
144
12 x b > 6 x 6. What two numbers for b would make this true?
b= 4 and b = 5 or any number greater than 3
What property says you can change the order of factors without changing the product, such as 3 x 4 = 4 x 3
Commutative Property
24 cookies are shared equally among 6 students. How many cookies does each student get?
4 cookies
378 + y = 825. What is y?
447
A school orders 12 boxes of pencils with 9 pencils in each box. How many pencils are there altogether?
108 Pencils
12 x 4 = g x 8 what is g?
g= 6
What do we call a number that is missing from an equation and must be found?
Unknown or missing variable
There are 120 students going on a field trip. Each bus holds 12 students. How many buses are needed?
10 buses