+ or -
Coins
2 Digit Adding by 10
Open Number Lines
Change Stories
Change Stories with Temperature
100
Solve with the correct + or - sign
9=7_____2
+(add)
100
You buy a candy bar for 20 cents. Show the coins you could use to pay the exact amount.
various- but : D D, or D, N, N, etc.
100
Solve: 10+10=?
20
100
Ciara has 20 pencils. She goes to the store and buys 25 more. How many pencils does she have now?
Use an open number line to help you.
45
100
Bob buys 9 blueberries at the store. Then he added 5 more. How many blueberries does he have now?
Use the change diagram to help you:
Start----->Change amount-----> End
14
9+5=14
Start----->Change amount-----> End
100
The day starts out at a cool 50 degrees Fahrenheit. It goes up 10 degrees. What is the temperature now?
60 degrees
50+10=60
Start Temperature--->Change(+ or -)-----> End Temperature
200
Solve with the correct + or - sign
7=5_____2
+( add)
200
You buy a candy bar for 40 cents. Show the coins you could use to pay the exact amount.
Various but: could be : D, D, D, D or Q, D, N
etc.
200
Solve:
20+10=?
30
200
Ciara has 25 pencils. She goes to the store and buys 25 more. How many pencils does she have now?
Use an open number line to help you.
50
200
Bob buys 10 blueberries at the store. Then he added 5 more. How many blueberries does he have now?
Use the change diagram to help you:
Start----->Change amount-----> End
15
10+5=15
Start----->Change amount-----> End
200
The day starts out at a cool 50 degrees Fahrenheit. It goes up 20 degrees. What is the temperature now?
70 degrees Fahrenheit
50+20=70
Count by 10's: 50(in your head), 60, 70
Start Temperature--->Change(+ or -)-----> End Temperature
300
Solve with the correct + or - sign
10=8_____2
+(add)
300
You buy an avocado for 50 cents. Show the coins you could use to pay the exact amount.
Various but, could be: Q, Q or Q, D, D, N etc.
300
Solve:
35+10=?
45
300
Ciara has 30 pencils. She goes to the store and buys 30 more. How many pencils does she have now?
Use an open number line to help you.
60
300
Bob buys 15 blueberries at the store. Then he added 5 more. How many blueberries does he have now?
Use the change diagram to help you:
Start----->Change amount-----> End
20
15+5=20
Start----->Change amount-----> End
300
The day starts out at a warm 80 degrees Fahrenheit. It goes down 10 degrees. What is the temperature now?
70 degrees Fahrenheit
80-10=70
Count by 10's 80( in your head), 70
Start Temperature--->Change(+ or -)-----> End Temperature
400
Solve with the correct + or - sign
10=12_____2
-(minus)
400
You buy a candy bar for 75 cents. Show the coins you could use to pay the exact amount.
Various, but could be: Q,Q, Q or Q, Q, D, D, N etc.
400
Solve:
100+100=?
200
400
Ciara has 35 pencils. She goes to the store and buys 35 more. How many pencils does she have now?
Use an open number line to help you.
70
400
Bob buys 20 blueberries at the store. Then he took 5 away. How many blueberries does he have now?
Use the change diagram to help you:
Start----->Change amount-----> End
15
20-5=15
Start----->Change amount-----> End
400
The day starts out at a cool 40 degrees Fahrenheit. It was 70 degrees in the evening.How much did the temperature change?
30
40+30=70
Start Temperature--->Change(+ or -)-----> End Temperature
500
Solve with the correct + or - sign
15=20_____5
- (Minus)
500
You buy a pack of gum at Costco for $1.00( or 100 pennies). Show the coins you could use to pay the exact amount.
Various, but could be: $1 bill, or Q,Q,Q,Q etc.
500
Solve:
150+100=?
250
500
Make up your own problem.....
Use an open number line to help you
Answer:_______
500
Bob buys 25 blueberries at the store. Then he added 10 more. How many blueberries does he have now?
Use the change diagram to help you:
Start----->Change amount-----> End
35
25+10=35
Start----->Change amount-----> End
500
The day starts out at a warm 80 degrees Fahrenheit. It is a cool 60 degrees by 5:00pm. How much has the temperature changed?
20 degrees Fahrenheit
80-60=20
Start Temperature--->Change(+ or -)-----> End Temperature