Mastering Quick Addition and Subtraction Techniques

What is the result of adding two identical numbers, for example, 2 + 2?

• 8

• 4

• 3

• 2

Tags

CCSS.3.OA.D.9

How would you calculate 3 + 3?

• 6

• 7

• 9

• 5

Tags

CCSS.1.OA.A.1

What is the sum of 2 + 2?

• 2

• 4

• 5

• 3

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

If you have two numbers and one is just one more than the other, what simple method can you use to find the sum?

• Subtract one and double

• Double the first and add one

• None of the above

• Add one to both numbers

Tags

CCSS.2.NBT.B.5

What is the sum of 2 + 3 using the method discussed?

• 3

• 4

• 5

• 6

Tags

CCSS.1.OA.A.1

What is 3 + 4 using the 'doubles plus one' method?

• 6

• 7

• 8

• 5

What strategy is suggested for adding numbers where one is just one more than its double?

• Double the smaller and add two

• Add five

• Double the smaller and add one

• None of these

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Using the 'doubles plus one' method, what is 8 + 9?

• 15

• 18

• 17

• 16

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is the result of 8 + 8?

• 16

• 14

• 17

• 15

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What should you do after learning the 'doubles plus one' method?

• Practice with a worksheet

• Forget it

• None of these

• Ignore it

Tags

CCSS.1.OA.C.6