51 P4.AN.JM.17092853
Level 3
The figure shows a square JKLM. ∠LJN is twice as large as angle MJN.
  1. Name the line of symmetry tor the square JKLM.
  2. Find ∠LJN.
  3. Find ∠JNM.
4 m
Square Angles sum of triangle Symmetry Model Times-as-many Units method
52 P4.DE.JM.17101089
Level 3
Jane mixes 2.4 ℓ of rose syrup with twice as much milk. She then pours the mixture equally into 9 cups. How much mixture will each cup contain?
4 m
D Multiplication D Division Volume Model Part-whole Model Times-as-many Units method
53 P4.WN.JM.17102230
Level 2
Mrs Lin's age is the fourth multiple of 9. Mrs Lin's age is 3 times her daughter's age. How old is her daughter?
3 m
Multiples Model Times-as-many
54 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
55 P4.DE.JM.171010127
Level 3
Tank A has thrice as much water as Tank B. If Gilbert adds 0.5 ℓ of water to Tank A and 1.8 ℓ of water to Tank B, both tanks will have the same volume of water. Find the volume of water in Tank A at first.
4 m
D 4 operations Volume Equal stage after Volume Model Times-as-many Units equations Units table

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