Balance Scale
What math symbol acts like the center point of a perfectly level see-saw?
The equal sign (=)
What is the inverse (opposite) operation of addition?
Subtraction
What is the inverse (opposite) operation of subtraction?
Addition
What standard math operation does a fraction bar represent?
Division
Find the missing number to balance this scale: 4+5=2+__
7
Solve for x: x+4=10
x = 6
Solve for b: b-3=8
11
Evaluate this expression: 12/4
3
True or False: If you add 3 to the left side of an equation, you must add 3 to the right side to keep it balanced.
True
To solve the equation m+12=20, what step must you perform on both sides?
Subtract 12
Maya had some stickers, gave 5 away, and has 12 left. Write the subtraction equation for this story.
x - 5 = 12
Turn this division problem into an algebraic fraction: 20 divide 5
20/5
Find the missing number to balance this scale: 15-5=__+4
6
Solve for y: y+15=40
y = 25
Solve for w: w - 11 = 19
w = 30
Evaluate this expression: 45/5
9