Level 3
Fill in the blanks with units or unit equations.
Adam has some stickers.
Adam has 100 less blue stickers than the red and the yellow stickers.
The number of red stickers is 20 less than the number of yellow stickers.
How many more blue stickers that yellow stickers are there?
How many less red stickers than blue stickers are there?
Level 3
Some stickers are packed into exactly packets of 10.
If the stickers are repacked into packets of 7,
there are 4 more packets and 2 stickers left.