Questions

From Best to Worst

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

Attempt

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

Attempt

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

Attempt

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

Attempt

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

Attempt

D Multiplication D Division Length Units method

506 P4.AP.JM.17100175

Level 3
A square of side 6 cm has the same perimeter as a rectangle. Find the area of the rectangle if the length of the rectangle is twice the breadth of the rectangle.

3 m

Attempt

Square Rectangle Equal stage Model Times-as-many Units method

507 P4.DE.JC.17100401

Level 3
Tank A holds 3 ℓ 485 mℓ of water. Tank B holds twice as much water as Tank A. Find the total amount of water in the 2 tanks. (Give the answer in litres and millilitres.)

3 m

Attempt

D Multiplication Volume Unit conversion Model Times-as-many Units method

508 P5.ST.JC.18121144

Level 3
Adam has 200 red stickers, blue stickers and green stickers.
40% of the stickers are blue.
30% of the remaining stickers are red.
The rest are green stickers.