4th - 8th grade

7 █ =2 █ + 7Δ

Find values for █ and Δ

4th - 8th grade

█ + █ + █ + █ + Δ = Δ + Δ + Δ + Δ

Find values for █ and Δ

4th - 8th grade

█ + █ + █ + Δ = Δ + Δ + Δ

Find values for █ and Δ

8th - 9th grade

John has $5 more than Bill.
Greg has twice as much as John.
Together they have $87.

How much money does each person have?

9th-11th grade

Examples:
..\15/
.7\ / 8
.../ \
./56\

....\14/
.12\ / 2
...../ \
.../24\

Questions

.......\3x-9/
.x+2\..... /?
......../..... \
....../....?... \

..\2√(a+b)/
..?.\....... /.?
......./...\.
...../a+b\

5th - 9th grade

n*n = 4

What are the two solutions for n?

5th - 9th grade

n*n = n+n

What two numbers could n be?

8th grade

___ ÷ 7/4 + 3/5 = -3 1/3