11 P5.ST.JC.18121191
Level 2
There are 4 girls and 5 boys.
The average height of the 4 girls is 155 cm.
The average height of 5 boys is 164 cm.
What is the average height of all the children?
2 m
2 averages
12 P5.ST.JC.18121198
Level 2
The average height of 4 girls is 100 cm.
The average height of 5 girls is 110 cm.
Find the height of the fifth girl.
2 m
2 averages
13 P5.DA.NK.23052601
Level 2
The graph shows the earnings that an apparel store made from January to May.
  1. What was the total earnings from January to May?
  2. How much money must be earned in June to have an average earnings of $3200 from January to June?
2 m
Bar graph Average Money Time More than or less than
14 P5.ST.JC.18121199
Level 3
There are 4 girls and some boys.
The total height of the children is 1440 cm.
The average height of the 4 girls is 155 cm.
The average height of the boys is 164cm.
How many boys are there?
3 m
2 averages
15 P5.ST.JC.18121192
Level 2
The average cost of 5 books is $30.
After another book that costs $90 is added,
  1. What is new total cost of all the books?
  2. What is new average cost of all the books?
3 m
Averaging out
16 P5.ST.JC.18121193
Level 2
The average cost of 5 books is $30.
After a book that costs $60 is removed,
  1. What is new total cost of all the remaining books?
  2. What is new average cost of all the remaining books?
3 m
2 averages Averaging out
17 P5.ST.JC.18121194
Level 2
The average cost of 5 books is $30.
After 2 books are removed,
the average cost of the remaining books is $20.
  1. What is the total cost of the 2 books that are removed?
  2. What is the average cost of the 2 books that are removed?
3 m
2 averages Averaging out
18 P5.ST.JC.18121195
Level 2
The average cost of 5 books is $50.
After 2 new books are added,
the average cost of all the books is $40.
  1. What is the total cost of the 2 books that are added?
  2. What is the average cost of the 2 books that are added?
3 m
2 averages Averaging out
19 P5.ST.JC.18121200
Level 2
The average cost of 4 books is $30.
The average cost of 3 books is $10.
What is the cost of 4th book?
2 m
2 averages Average with unknown quantity
20 P5.ST.JC.18121196
Level 3
The average number of stickers that Adam and Bryan have is 30.
The average number of stickers that Adam and Chris have is 40.
The number of stickers that Bryan has is 23 as many as Chris.
  1. How many stickers does Adam have?
  2. How many stickers does Bryan have?
  3. How many stickers does Chris have?
3 m
Fraction to units Average with repeated identity Units & parts & boxes

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