Hands-on math!

Washington State Math Olympiad
Hints and Solutions
2017 Grade 7 Number Sense
Problem

1) Find the largest whole number x, so x 8 > 8x

2) Place groups of parentheses to make the statement true
    6 - 2 x 3 + 2 ÷ 5 - 3 - 43 = 5

3) The same relationship is used in each square. What is the missing number?

Problem

4) Simplify each expression. Find what the 11th term in the sequence would be. Express your answer as a fraction in lowest terms.

5) A box of red pens holds 13 pens. A box of black pens holds 21 pens. Chuck needs to order exactly 1,550 pens. For his order, he wants the number of red pens to be as close to the number of black pens as possible. How many boxes of black pens should he order?