Questions

From Best to Worst

11 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

Attempt

Percent change by Percent to decimal Percent of different bases Money Equal stage before All change Units table Decimal units

12 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

Attempt

Percent of a set Equal stage before Branching Internal transfer Units table

13 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

Attempt

Fraction to units Equal stage before Combined repeated identity Remainder concept Units equations Units table

14 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

Video Attempt

Decimal to units Equal stage before Equal stage after Internal transfer Units equations Units table Decimal units

15 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

Attempt

Fraction to units More than or less than Equal stage before All change Units table

5 per page

10 per page

20 per page