Level 3
The cost of 6 files and 10 markers is $40. What is the cost of 9 files and 15 markers?
3 m
Level 3
Adrian had 3 coins and Alex had 6 coins. Their coins consisted of 20¢ coins and 50¢ coins. When all their 50¢ coins were exchanged for 20¢ coins, they had a total of 15 coins. How many 20¢ coins did they have at first?
4 m
Level 1
What is the value of the digit '5' in 54829?
1 m
Level 1
In 105965, the place value of the digit zero is ____.
1 m
Level 1
In 79205 = 70000 +___ + 200 + 5, what is the missing value in the blank?
1 m