When using a hundred chart to find 57-30, you start at 57 and then count up or down how many rows?
What is count up 3 rows
100
73-21
What is 52
100
Lucy had $30. Then she bought a kite for $12. What is the best estimate of what she had left.
What is $20
100
There are 16 girls and 19 boys in an art club. Which statement best describes the club members?
A. 5 more boys than girls
B. 3 more girls than boys
C. 3 more boys than girls
D. 5 more girls than boys
What is C
200
Jenny wanted to solve the problem 51-19 using mental math. How can she make this problem simpler?
What is she can add 1 to each number because 52- 20 is simpler.
200
Gwen wants to have 20 stickers in her collection. She has 12 stickers. Give me the number sentence that shows how many more stickers she needs.
What is 20 -12 =8 or 12 + __ =20
200
There are 68 students in the school band. 32 of these students are boys. What is the best estimate for the number of girls?
What is 40
200
pencils = 12
notebooks = 6
erasers = 15
Give the number sentence to solve how many more erasers than pencils.
What is 15-12
300
How would you use the hundred chart to subtract 66-35?
What is Start at 66 move up 3 rows and the the left 5 squares.
300
Natasha is reading a book that is 58 pages long. She has read 27 pages. She wants to estimate how many pages she has left?
What is about 30.
300
An art show has 33 paintings and 19 sculptures. Which number sentence show the best way to estimate how many more paintings than sculptures are in the art show?
What is 10
300
When subtracting 386-184. What number to you take away from.
What is 386
400
Lucia has 22 markers in a box. She lent 8 markers to a friend. How many markers does Lucia have left?
A. 22-8=14 Lucia's friend has 14 markers
B. 22-8=14 Lucia has 14 markers
C. 22-8=24 Lucia has 24 markers
D. 22-8=24 Lucia's friend has 24 markers.
What is B
400
* Give the answer to 57-22 in tens and ones.
What is 3 tens and 5 ones
400
Melinda wants to save $200 for a new bike. So far she has 4136. How much money does she still need?
What is $64
400
How many times do you regroup to solve the problem 445-117?