Common Core aligned
Grade 4 • bar-models • Medium
Challenge Problems 3
Additional challenges
5 problems
1.
Emma has 18 pencils. Max has 15 pencils. Emma gives 10 to Max. How many pencils do they have altogether now?
Bar Model:
18
15
Equation: 18 + 15 - 10 + 10 = 33
Answer:
2.
Emma has 21 cookies. Sam has 15 cookies. Emma gives 2 to Sam. How many cookies do they have altogether now?
Bar Model:
21
15
Equation: 21 + 15 - 2 + 2 = 36
Answer:
3.
Max has 25 crayons. Lisa has 14 crayons. Max gives 2 to Lisa. How many crayons do they have altogether now?
Bar Model:
25
14
Equation: 25 + 14 - 2 + 2 = 39
Answer:
4.
Max has 12 stickers. Tom has 13 stickers. Max gives 3 to Tom. How many stickers do they have altogether now?
Bar Model:
12
13
Equation: 12 + 13 - 3 + 3 = 25
Answer:
5.
Max has 15 marbles. Jack has 12 marbles. Max gives 4 to Jack. How many marbles do they have altogether now?
Bar Model:
15
12
Equation: 15 + 12 - 4 + 4 = 27
Answer: