Level 1
What is the missing number? 12 : 32 = ___ : 56
1 m
Level 2
Adam spends $15.70 on 2 stickers and 3 marbles.
A sticker costs 3 times as much as 1 marble.
  1. How much does 1 sticker cost?
  2. How much do 4 stickers cost?
  3. How much do a marble and 4 stickers cost?
  4. How much does 1 marble cost less than 4 stickers?
4 m
Level 3
Some stickers are packed into exactly packets of 10.
If the stickers are repacked into packets of 7,
there are 3 more packets.
  1. How many packets of 7 are there?
  2. How many stickers are there?
3 m
Level 3
Some stickers are packed into exactly packets of 7.
If the stickers are repacked into packets of 10,
there are 3 less packets.
  1. How many packets are there?
  2. How many stickers are there?
3 m
Level 1
The ratio of Natalie's age to her brother's age is 7 : 9. Natalie is 21 years old. What is her brother's age?
1 m