Questions

From Worst to Best

71 P6.DA.NK.21060937

Level 2
The average height of some children is 160 cm. There is an equal number of boys and girls. The average height of the boys is 170 cm. Find the average height of the girls. Give your answer in cm.

2 m

Attempt

72 P6.PC.TL.16010147

Level 2
Olivia and Fiona shared a box of chocolates. Olivia had 72% of the total chocolates. if Olivia gave 66 of her chocolates to Fiona, both would have the same number of chocolates. How many chocolates did Olivia have?

2 m

Attempt

Percent of a set Equal stage after Unchanged total Units table

73 P6.ST.JC.18121460

Level 2
Fill in the blanks.
The ratio of the number of boys to the number of girls in Class A is 3 : 2.
The ratio of the number of boys to the number of girls in Class B is 4 : 5.
The number of boys is the same.

Difference in the number of children in Class A and Class B = _____ u
Difference in the number of girls in Class A and Class B = _____ u
Total number of boys = _____ u
Total number of girls = _____ u

4 m

Video Attempt

Ratio to units Equal stage Units table Units manipulation

74 P6.RD.JO.21042229

Level 2 PSLE
Sam kept his gold and silver stars in two boxes. The ratio of the number of gold to silver stars in the first box was 1 : 5 and it was 1 : 2 in the second box. The two boxes contained the same number of stars. What fraction of Sam's stars were goId stars?

2 m

Attempt

Fraction of a set Ratio to units Equal stage Units manipulation Units table

75 P6.ST.JC.18121461

Level 2
Fill in the blanks in units (Eg 3 u) or unit equations (Eg 1 u + 2).

Adam and Bryan have some stickers.
When Bryan uses ¹₃ of his stickers and
Adam buys another 20 stickers,
they have the same number of stickers each.

Let the number of stickers that Bryan has in the end be 2 u.