Math Riddles

Fill in the blanks of the equation to make it true.

​ (a)   ​ ​ $$-$$ $$3$$ $$\times$$ ​ ​ (b)   ​= $$-16$$ ​

Fill in the blanks with the integers to make the equation true.

(​ (a)   + $$3$$ )² $$-$$ ​ ( (b)   $$+$$ ​ $$2$$ )² = ​ $$28$$

Use $$4,\ 5,\ 6,\ 7,\ 8,\ or\ 9$$ to make the sum equal to 100.

​ ​ ​ ​ ​ ​ (a)   ​ (b)   $$-$$ ​ ​ (c)   ​ (d)   ​ $$+$$ $$5$$ ​ (e)   $$+$$ $$23$$ $$+$$ $$1$$ $$=100$$

Type your answer in as an integer.

How many circles contain the black dots?

What is the combined mass of the dog, cat, and bunny in kg?

What is the square minus the circle equivalent to?

How old is Lily?

How many individual triangles can be created in this picture?

You can be right within 1 triangle, but cannot go over the actual amount.

(a)