Basic Concepts
What does PEMDAS stand for?
Parentheses, Exponents, Multiplication and Division, Addition and Subtraction
Simplify: 10−2+3
10−2+3=11
If you buy 3 apples for 22 dollars each, how much do you spend?
3×2=66 dollars
John has 4 times as many marbles as his friend who has 3 marbles. How many marbles does John have?
4x3=12
What is the result of 7+3×2?
7+6=13
What is the first operation you perform in the expression 8+(3×2))?
the multiplication inside the parentheses first
What is the value of 12÷3+4×2
4+8=12
You have 10 candies and you share them equally with 2 friends. How many candies does each person get?
10÷3=3.33 (or each person gets 3 candies and one left over)
If you run 5 miles each day for 3 days, how many miles do you run in total?
5x3=15
: Solve: 8÷4+5×2
2+10=12
Solve: 5+2×3
5+6=11
Solve: 2×(3+4)−5
2×7−5=14−5=92×7−5=14−5=9
If a pizza is cut into 8 slices and you eat 3, how many slices are left?
8−3=5
A car travels 60 miles per hour. How far does it go in 2 hours?
60×2=120 miles.
Evaluate: 6+(23÷2)
6+(8÷2)=6+4=10.
In the expression 4+6÷2, which operation do you do first?
6÷2=3
Evaluate: 15−(6+2×3)
15−(6+6)=15−12=3
A book costs 12 dollars. If you buy 3 books, how much do you pay in total?
3×12=36 dollars.
If a recipe calls for 2 cups of sugar and you want to make 3 times the recipe, how much sugar do you need?
2×3=6 cups of sugar.
If x=3x=3, what is the value of 2x+42x+4?
2(3)+4=6+4=10.
If you have the expression 3+5×(22−1), what do you calculate first?
22=4
Calculate 8+4×(23−3)
8+4×(8−3)=8+4×5=8+20=28
You have 5 boxes of cookies, each containing 10 cookies. If you eat 5 cookies, how many are left?
5×10−5=50−5=45
You have 50 dollars and you spend 20 dollars on a book and 15 dollars on a game. How much money do you have left?
50−20−15=15 dollars.
Evaluate the expression: (5+3)×(4−2).
8×2=16.