21 P5.RD.JM.17083139
Level 3
Tim's and Natalie's monthly allowances were the same at first. Tim's allowance increased by 50% while Natalie's increased by 20%. Given that Tim's allowance would increase by another 20% if he had received $300 more from his father, find the difference in the children's monthly allowances.
5 m
Percent change by Percent to decimal Percent of different bases Money Equal stage before All change Units table Decimal units
22 P5.PC.JM.17083152
Level 3
Ron and Shawn had 60 sweets each. Ron gave 20% of his sweets to Shawn. After receiving the sweets from Ron, Shawn gave 50% of his total sweets to Tammy. How many sweets had Shawn left?
4 m
Percent of a set Equal stage before Branching Internal transfer Units table
23 P6.RD.TL.16010176
Level 3
Xuan, Penny, Kate and Violet went to buy a gift for their grandmother. They shared the cost equally among themselves. However, Violet forgot to bring her money. So, the other 3 girls paid for the gift first. Kate paid 35 of the amount Xuan and Penny paid. Penny paid $11 more than Xuan. The next day, Violet returned $76 to Kate and some money to Xuan and Penny. How much did Violet return to
  1. Xuan?
  2. Penny?
5 m
Fraction to units More than or less than Equal stage before Unchanged total Units table Units & parts Substitution
24 P6.FR.TL.16010139
Level 3
Three girls gave an equal amount of money to buy a souvenir for Oscar. Diana used 13 of her money. Fiona used 34 of her money and Ruth used 12 of hers. They had a total of $190 at first. How much was the souvenir?
4 m
Fraction to units Equal stage before Common numerator All change Units table Units manipulation
25 P6.RD.TL.16010150
Level 3
Mr Yap bought some pizzas for a group of pupils. There is an equal number of girls and boys. The girls received 5 times as many pizzas as the boys. Each boy ate 13 of a pizza and the boys finished all the pizzas given to them. Each girl ate 16 of a pizza and the girls had 18 12 pizzas left. How many pizzas did Mr Yap buy?
5 m
Fraction to units Times as many Equal stage before All change Units table Units & parts Elimination
26 P6.RD.TL.16010182
Level 3
At a conference made up of speakers and participants, there were 10% more men than women. The ratio of the male speakers to female speakers was 8 : 5. There was an equal number of male and female participants.
  1. Find the ratio of male speakers to male participants at the conference at first.
  2. Halfway, 89 male participants left the conference and another 73 female participants joined the conference. In the end, there were 34 as many male participants as female participants remaining behind. How many speakers were there at the conference?
5 m
Fraction to units Finding ratio Ratio to units Percent to units More than or less than Equal stage before Remainder concept All change Units table Units & parts & boxes Elimination
27 P5.FR.NK.23021717
Level 3
Elyse bought some pens. She gave 16 of the pens to her cousin and sold 34 of the remaining pens. After that, she bought another 171 pens and had the same number of pens that she bought at first. How many pens did Elyse buy at first?
4 m
Fraction to units Equal stage before Combined repeated identity Remainder concept Units equations Units table
28 P6.FR.TL.16010147
Level 3
Nick and Ken have some yellow staplers and some pink staplers. The number of pink staplers Nick has is equal to the number of yellow staplers Ken has. 14 of Nick's staplers are yellow and 15 of Ken's staplers are pink. There are a total of 112 yellow staplers. Find the total number of staplers they have.
4 m
Fraction to units Equal stage before Units table Units manipulation
29 P5.DE.JC.17083263
Level 3
Andrew, Bryan and Charlie had the same number of marbles. Charlie gave 0.5 of his marbles to Bryan. Then Bryan gave 0.25 of his marbles to Andrew. Finally, after Bryan gave 30 marbles to Charlie, he had the same number of marbles as Charlie. How many marbles did Charlie have at first?
5 m
Decimal to units Equal stage before Equal stage after Internal transfer Units equations Units table Decimal units
30 P5.FR.NK.23021751
Level 3
Sean and Pierre had an equal number of books. Sean donated 18 of her books and Pierre donated 15 of his books. Pierre donated 12 more books than Sean. How many books did Pierre have at first?
4 m
Fraction to units More than or less than Equal stage before All change Units table

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