Use Double Facts
Solve the problem using double facts
(example : 2+3= 2+2+1=5)
3+4=
___+___+___=___
3+3+1=7
Write the sums for both
3+3=___
3+4=___
3+3=6
3+4=7
Show how you can make a ten to find a sum (use the carrot to show your work)
9+2=___
10+___=___
9+2=11
^
1 1
10+1=11
Solve the problem. Circle two addends you added together first.
2+3+7=___
2+3+7=12
Which number has the same value as 30 tens?
a. 310
b. 300
c. 30
d. 3
b. 300
Solve the problem using double facts
4+5=
___+___+___=
4+4+1=9
Write the sums for both
6+ 3=___
3+6=___
6+3=9
3+6=9
Show how you can make a ten to find a sum (use the carrot to show your work)
4+8=___
10+___=___
4+8=12
^
2 2
10+2=12
Solve the problem. Circle two addends you added together first.
7+3+3=___
7+3+3=13
A number that is 2 tens more than 923. What is the number
943
Solve the problem using double facts
5+6=
___+___+___=
5+5+1=11
Write the sums for both
9+3=___
9+4=___
9+3=12
9+4=13
Show how you can make a ten to find a sum (use the carrot to show your work)
8+4=___
10+___=___
8+4=12
^
2 2
10+2=12
Solve the problem. Circle two addends you added together first.
6+4+4=___
6+4+4=14
Write the number
three hundred forty- two
342
Solve the problem using double facts
6+7=
___+___+___=
6+6+1=13
Write the sums for both
9+8=___
9+9=___
9+8=17
9+9=18
Show how you can make a ten to find a sum (use the carrot to show your work)
6+7=___
10+___=___
6+7=13
^
3 3
10+3=13
Solve the problem. Circle two addends you added together first.
2+8+2=___
2+8+2=12
What number is ten more than 214
224
Solve the problem using double facts
8+9=
___+___+___=
8+8+1=17
Write the sums for both
___=7+7
___=7+6
14=7+7
13=7+6
Show how you can make a ten to find a sum (use the carrot to show your work)
9+9=___
10+___=___
9+9=18
^
8 1
10+8=18
Solve the problem. Circle two addends you added together first.
7+5+5=___
7+5+5=17
Compare the number. Write <, > or =
764
674
764>674 or 674<764