Show:
Double Digit Addition
Addition Patterns
Vocabulary
Subtraction
Addition
100

12+25=

What is 47?

100
1 more than 75
What is 76?
100
Doing math in your head.
What is mental math?
100

15-9=

What is 6?

100
192 + 464
What is 656?
200

36+38=

What is 74?

200
2,343; 3,343; 4,343; 5,343 Pattern: Adding ____
What is 1,000?
200
This tells you which operations to group in a number sentence.
What are parentheses?
200

26 - 12 =

What is 14?

200
387 + 251
What is 638?
300

58+65=

What is 123?

300
495, 505, 515, ___, ___, 545 Pattern: Adding ____
What is 525, 535, and 10's?
300
A number close to its actual value
What is an estimate?
300

37 - 28 = 

What is 9?

300

834 + 73=

What is 907?

400

87+96=

What is 183?

400
10 more than 723 100 more than 723 1,000 more than 723
What is 733, 823, 1,723?
400
The missing number or what you are solving for in a problem
What is the unknown?
400

76 - 52 = ?

What is 24?

400

348 + 265 = 

What is 613?

500

63+128=?

What is 191?

500

1,000 more than 9,876 100 more than 9,876 10 more than 9,876

What is 10,876; 9,976; 9,886?

500
To use place value to exchange equal amounts when renaming a number.
What is regrouping (to regroup)?
500

86 - 39 = ?

What is 47?

500

1,205 + 366 = 

What is 1,571?