A pen cost twice as much as a pencil. Jenny paid $28 for 3 pens and 1 pencil. How much did jenny pay for the 3 pens?
Adam has twice as many stamps as Kim. Kim has 345 more stamps Tan Peter. If the 3 of them have 2378 stamps altogether, how many stamps does Adam have? Using stacking model
There were 310 apples, oranges and pears at the fruit stall. The number of apples was thrice the number of oranges. The number of pears was 60 less than the number of oranges. How many apples were there at te fruit stall? (Using staking model)
A pen cost twice as much as a pencil. Jenny paid $28 for 3 pens and 1 pencil. How much did Jenny pay for the 3 pens? (Using stacking model)
