Common Core aligned
Grade 4 • bar-models • Medium
Challenge Problems 1
Advanced problems
5 problems
1.
Sam has 11 stickers. Jack has 17 stickers. Sam gives 9 to Jack. How many stickers do they have altogether now?
Bar Model:
11
17
Equation: 11 + 17 - 9 + 9 = 28
Answer:
2.
Emma has 14 marbles. Mia has 16 marbles. Emma gives 10 to Mia. How many marbles do they have altogether now?
Bar Model:
14
16
Equation: 14 + 16 - 10 + 10 = 30
Answer:
3.
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:
4.
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:
5.
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: