161 P4.DE.JM.171010140
Level 3
In a bookshop, 2 pens and 3 files cost $11.20. Joseph bought 3 pens and 4 files at $15.40 from the book shop.
  1. Find the cost of 1 pen and 1 file.
  2. What was the cost of 1 file?
4 m
D 4 operations Units & parts Elimination
162 P4.DE.JM.171010142
Level 3
The total mass of 2 shells and 6 rings is 24.8 kg. The total mass of 1 shell and 2 rings is 6.8 kg. What is the mass of each ring?
4 m
D 4 operations Mass Units & parts Substitution
163 P4.DE.JM.171010139
Level 3
The total cost of 1 orange and 2 pears is $2.40. The total cost of 3 oranges and 5 pears is $6.30. Find the cost of 1 pear.
4 m
D 4 operations Money Units & parts Elimination
164 P4.DE.NK.22120821
Level 3
The cost of 4 paperbacks and 2 comics is $22.40. The cost of 2 paperbacks and 2 comics is $14.40. What is the cost of 6 paperbacks and 6 comics?
4 m
D 4 operations Money Units & parts Elimination
165 P4.DE.JM.171010156
Level 3
The total weight of a teddy bear and a doll is 3.5 kg. The total weight of a teddy bear and a toy car is 4.8 kg. If the total weight of a toy car and a doll is 5.65 kg, find the total weight of a teddy bear, a doll and a toy car.
4 m
D 4 operations Mass Sets Units & parts & boxes
166 P4.DE.NK.22120822
Level 3
The total mass of Pierre and Rael is 46.6 kg. The total mass of Rael and Mark is 59 kg. If the total mass of Pierre and Mark is 56 kg, find the mass of Mark.
4 m
D 4 operations Sets Mass Repeated identity Units & parts & boxes Elimination

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