Level 3
X, Y and Z each represents a number. Find the sum of X, Y, and Z.
3 m
Level 2
Study the pattern. What is the missing number?
3 m
Level 2
Study the pattern. What is the missing number?
1620, 1740, 1860,              , 2100
3 m
Level 3
Dennis saved some money on the first week. Each following week, he managed to save $8 more than the week before. He saved a total of $100 after 4 weeks. How much money did he save on the 3rd week?
4 m
Level 3
Some squares are used to make the following pattern. How many squares are there in Pattern 7?
4 m