Writing Expressions and Equations
Exploring Equations
Adding Equations
Subtracting Equations
Surprise Me!
100

A number increased by 5

n+5

100

5+3=[?]+4

4

100

x+5=12

x=7

100

x-9=1

x=10

100

When is the first day of spring?

March 20

200

16 less than a number

n-16

200

5 times [?]=35

7

200

x+16=29

x=13

200

x-12=23

x=35
200

What key is to the right of "T" on a standard keyboard?

Y

300

5 more than 3 times a number

5+3n

300

None, One, or Many?

4+c=c+4

Many

300

x+1/2=3/4

x=1/4

300

x-6.2=11.6

x=5.4

300

What river runs from Lake Itasca in Minnesota to the Gulf of Mexico in Louisiana?

Mississippi River

400

The sum of four times a number and 12 is 28

4x+12=28

400

None, One, or Many?

k+2=k+1

None

400

x+2.1=9.7

x=7.6

400

x-2/15=2/3

x=4/5

400

Of the 7 colors of the rainbow, which is the middle one?

Green

500

The quotient of a number divided by 21 is equal to 3

n/21=3

500

None, One, or Many?

g=6 x g

One

500

x+12.54=17.36

x=4.82
500

62.58-x=43.31

x=19.27

500

What city was famously destroyed by a volcano in the year 79?

Pompeii