156 P4.DE.JM.171010108
Level 2
Gopal went to a shop with 3 fifty-dollar notes. He bought a watch and a calculator. A watch cost 3 times as much as a calculator. He received $32.40 change. How much did the calculator cost?
4 m
D 4 operations Money Model Times-as-many Units method
157 P4.DE.JM.171010137
Level 3
At a book shop, Alice paid $12 for 1 book and 2 pens. The book cost $6 more than the total cost of all the pens.
  1. How much did 1 pen cost?
  2. How much did 1 book cost?
4 m
D 4 operations Money Model Comparison Units method
158 P4.DE.JM.171010143
Level 3
At a book shop, Alice paid $12 for 1 book and 2 pens. The book costs $6 less than the total cost of all the pens.
  1. How much did 1 book cost?
  2. How much did 1 pen cost?
4 m
D 4 operations Money Model Comparison Units method
159 P4.AN.JM.17092872
Level 3
The figure shows a piece of square paper ABCD folded at two of its corners A and C. ∠AED is 3 times as large as ∠ADE and ∠CDF is 6° smaller than ∠ADE. Find ∠ADC.
4 m
Square Angles sum of triangle Overlapping angles Model Comparison Model Times-as-many Units method
160 P4.AP.JM.17100272
Level 3
Adam used 4 similar rectangular strips to form a square. If the perimeter of the square is 64 cm, what is the perimeter of a rectangular strip of paper?
3 m
Square Rectangle Rectilinear figure Units method

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