Addition Strategies Using Doubles Facts

The video tutorial covers various addition strategies, including using doubles, plus 9, counting up, doubles plus one, and doubles plus two. It explains how to use these strategies to solve addition problems efficiently. The tutorial also provides examples and exercises to practice these methods, helping students understand and apply them in different scenarios.

What is the first step in solving a 'plus 9' problem using the 'plus 10, minus 1' strategy?

• Add 8 and then add 1

• Subtract 1 and then add 10

• Add 10 and then subtract 1

• Add 9 directly

If you use the 'plus 10, minus 1' strategy, what is 2 + 9?

• 10

• 11

• 13

• 12

In the counting up strategy, how do you find the missing number in 9 + ? = 16?

• Subtract 7 from 16

• Add 7 to 9

• Count down from 16 to 9

• Count up from 9 to 16

Tags

CCSS.2.OA.A.1

What is the missing number in 4 + ? = 13 using the counting up strategy?

• 10

• 7

• 8

• 9

Tags

CCSS.2.OA.A.1

What is the sum of 5 + 5 in doubles addition facts?

• 10

• 8

• 11

• 9

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is the result of 7 + 7 in doubles addition facts?

• 15

• 14

• 13

• 12

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

In doubles plus one strategy, what is 4 + 5?

• 8

• 9

• 10

• 11

Using doubles plus one strategy, what is 7 + 6?

• 13

• 12

• 15

• 14

In doubles plus two strategy, what is 6 + 4?

• 8

• 10

• 11

• 9

Using doubles plus two strategy, what is 9 + 7?

• 14

• 15

• 17

• 16