Questions

From Worst to Best

41 P5.ST.JC.18121118

Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away 10 blue stickers and 40 red stickers,
there is an equal number of blue stickers and red stickers.
How many stickers does Adam have now?

3 m

Attempt

42 P5.ST.JC.18121119

Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away 10 blue stickers and buys another 20 red stickers,
there is an equal number of blue stickers and red stickers.
How many stickers does Adam have now?

3 m

Attempt

Ratio to units Equal stage after All change Units table Units equations

43 P5.RD.JM.17083182

Level 3
Lennie gave ⁵₈ of his salary to his wife. He gave ¹₅ of his salary to his four children and left the rest for himself. He had $420 left for himself. Given that his four children received the same amount each, how much did each of his four children receive?

4 m

Attempt

F Addition & subtraction Fraction to units Money Equal stage after Remainder concept Units method

44 P6.RD.TL.16010171

Level 3
Three women, Mrs Zhang, Mrs Lin and Mrs Yap went on a shopping spree. 30% of Mrs Zhang's spending is equal to ¹₅ of Mrs Lin's spending. Mrs Yap's spending is 40% more than Mrs Lin's. If Mrs Lin spends another $804, she will spend the same amount of money as Mrs Yap.

Find the ratio of Mrs Zhang's spending to Mrs Lin's to Mrs Yap's.
How much did Mrs Zhang spend?

4 m

Video Attempt

Fraction to units Finding ratio R Simplest form Percent to units Percent of different bases More than or less than Equal stage after Repeated identity Common numerator Units table

45 P6.RD.TL.16010198

Level 3
Two hours ago, a stallholder started his day with some durians and apples in the ratio of 5 : 2. There were 100 apples. Some of the durians were bought by Mrs Olivia. As a result, the number of durians became ³₅ of the apples.