Multiplication
15 x 4
60
Determine whether it is a variable, expression, or equation: 3x
expression
Sarah has 4 cats who eat 3 pounds of cat food each day. How many pounds of cat food does she need to buy for each day?
12 pounds of food.
4x3= 12
31 x 9
279
Determine whether it is a variable, expression, or equation: z
variable
Lily wants to separate 15 pencils to her 5 friends. How many pencils will each friend get?
3 pencils
15/5 = 3 pencils
15 x 72
1,080
Determine whether it is a variable, expression, or equation: 4x = 8
expression
If you do 6 math problems in 10 minutes, how many problems can you do in in 60 minutes?
36 problems
6 math problems x (60/10) = 6 x 6
333 x 7
2,331
Solve this equation:
5x = 10
Lulu walks 2 miles to the store. Then she walks 4 miles to the park. After that, she walks 5 miles home. How many miles does she walk in total?
2 + 4 + 5 = 11 miles total
90,000 x 2
180,000
Solve this expression:
b + 7 = 14
b = 7
I start off with 300 cupcakes. My brother eats 2, my dad eats 10, and my mom eats 8. Then I give my teacher 31 cupcakes. How many cupcakes do I have left?
300 - 2 - 10 - 8 - 31 = 249