A quadrilateral has angles 86°, 124°, and 61°. Find the fourth angle in degrees.
Answer:
2.
A number is multiplied by itself, then 15 is added, to get 115. What is the number?
Answer:
3.
What is 3 3/4 rounded to the nearest whole?
Answer:
4.
In a number pyramid, each brick is the sum of the two bricks below it. Find the missing brick.
Each brick is the sum of the two bricks directly below it.
Answer:
5.
Solve for the missing value: 2:5 = 4:X
Answer:
Section B — Practice
6.
2/3 of the water in a pond is drained out. Then 3/5 of the remaining water evaporates. What fraction of the original water is left?
Answer:
7.
An audience of 360 has adults to children in ratio 7:8. How many adults?
Answer:
8.
This flowchart sorts shapes into two groups using one yes/no question. What question belongs in the missing box?
Answer:
9.
If a ★ b means "double a, then subtract b":
Find 12 ★ 8.
Answer:
10.
5 children have a mean age of 10 years. 4 of them are 12, 10, 12, 8 years. What is the age of the last child?
Answer:
Section C — Challenge
11.
What is the exterior angle of a regular octagon (8 sides) in degrees?
Answer:
12.
A bag has 116 sweets. The class ate 1/2 during break. How many were eaten?
Answer:
13.
Choose the correct symbol: 23,739,307 ☐ 23,760,982