501 P4.AN.JM.17092840
Level 3
In the figure, EC is a straight line. ∠ADB is twice as large as ∠BDC but 20° less than ∠ADE. Find ∠ADE.
3 m
Angles on a straight line Model Comparison Model Times-as-many Units method
502 P4.AP.JM.17100174
Level 3
The rectangle, not drawn to scale, has a perimeter of 72 cm. Its length is 3 times as long as the breadth. Find the length of the rectangle.
3 m
Rectangle Model Times-as-many Units method
503 P5.ST.JC.18121163
Level 3
If Adam's income decreases 10% from $330 and then increases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method
504 P4.AP.JM.17100198
Level 3
Brandon walked across a rectangular field from V to W to X to Y to Z and covered a distance of 560 m. The length of the field is thrice the breadth. If it cost $5 to cover 1 m2 of the field with grass, how much did it cost to cover the whole field with grass?
3 m
Rectangle Money Model Times-as-many Units method
505 P4.DE.JM.17101090
Level 2
A string 5.8 m long is used to make 4 similar ribbons. Find the total length needed to make 6 such ribbons.
3 m
D Multiplication D Division Length Units method

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