Question:

Tom has a mass of 8r kg. John is 4 kg heavier than Tom.
The mass of May is twice the total mass of the Tom and John.

2 m
- Find the total mass of the 3 children in terms of r.
- If r = 2, find the average mass of the 3 children.

Find the value of 5a - 9b^{2} + 3c when a = 10, b = 2 and c = 12.

2 m
PSLE

Andy had 1.4 m of wire. He used some of it to make the figure as shown.

2 m
Andy had 1.4 m of wire. He used some of it to make the figure as shown.

- How much of the wire did Andy use to make the figure? Leave your answer in the simplest form in terms of x.
- If x = 15, how much of the wire was not used to make the figure? Leave your answer in metres.

Gary weighs x kg while Jim weighs 2y kg.

2 m
- Find the average mass of each boy in terms of x and y.
- If x = 47 and y = 19, find the average mass of each boy.

PSLE

Abel, Ben and Cindy share $15z. Abel gets $z more than Ben and Cindy gets $2z more than Ben. If z = 7, how much money does Ben get?

2 m
Abel, Ben and Cindy share $15z. Abel gets $z more than Ben and Cindy gets $2z more than Ben. If z = 7, how much money does Ben get?

Sara had 100 sweets. She gave some sweets to k pupils and had 12 sweets left. How many sweets did each pupil get?

2 m
A rope w cm long is cut into two pieces. One piece is 5 cm longer than the other. What is the length of the longer piece? Give your answer in terms of w.

2 m
PSLE

Find the value of 7 +^{2a}_{3} when a = 8. Give your answer as a mixed number in the simplest form.

2 m
Find the value of 7 +

PSLE

Find the value of 2w - 6 +^{3w}_{5} when w = 8. Give your answer as a mixed number in the simplest form.

2 m
Find the value of 2w - 6 +

Jeremy had n boxes of paper clips. There were 20 paper clips in each box. He lost 4 paper clips and shared the remaining paper clips with his 3 friends. How many paper clips did each of them receive?

2 m