FYI, I will try to answer your questions if you also give it a try.
Hope this blog can help the parents as well as the kids.
"A Model A Day, Keeps The Algebra Away" - Chi Hung Chan
Focus primarily on upper primary school (P4,5,6) mathematics
No guess and check, no wordy solution, just "Model" answer
My SIX STEPS TO MODEL APPROACH
A must visit website for Singapore PSLE
FYI, I will try to answer your questions if you also give it a try.
Hope this blog can help the parents as well as the kids.
A box contained 50¢ coins and 20¢ coins in the ratio 2:3. When I took out four 50¢, exchanged them for 20¢ coins, and put then put the money back into the box, the ratio became 2:7. Find the sum of money in the box.
Aminah and Belinda each has some money. If Aminah spends $8, the ratio od the amount of money Aminah has to the amount of money Belinda has becomes 2:3. If Belinda spends $8, the ratio of the amount of money Aminah has to the amount of money Belinda has will be 11:14. How much money do they have altogether?
A fruit seller brought 350 apples for $140. 30 apples were rotten. He packed the rest in packets of 4 and sold each packet for $1. How much money did he lose from sale ?
Gilian spent 1/3 of her salary each month, gave 2/5 of it to her mother and saved the rest. If she saved $400 each month, what is her total salary ?
Suzanne baked 1200 tartlets. She gave 1/2 of them to her mother and 1/4 of the rest to her sister. How many tartlets did she have left ?
Two pails, A and B, contain 1 litre 900 ml of water altogether. After 680 ml of water is poured from pail A into pail B, the amount of water in each pail is the same. How much water was in pail A at first ? Give your answer in litre and ml.