You can get the sum 15 by:

Use fact patterns to complete each equation.
3 + 4 = 7
4 + ....= 7

3 + 4 = 7
>>>       4 + 3 = 7.

Look at the shaded 12. Which row and column were used for this sum?

Hence, the sum representation is 8 + 4 =12.

Find the option that has a sum of 5

Here we used the concept of addition which is an arithmetic operator used in a number of operations. So 2 + 3 = 5 is the correct answer. There are certain methods to do addition like using addition tabe, or using number line as well.

Use fact patterns to complete each equation.
8 + 5 = 13
7 + .....= 13

8 + 5 = 13.
>>> 7 + 6 =13.

Describe the pattern of purple numbers. It is:

In the question, we have to find the pattern of purple number. So find the pattern just look at the option and match one by one if anyone of them would match then it will be your answer.

Calculate 2 + 10 =  _______.

Use fact patterns to complete each equation.
4 + 6= 10
5 +.....= 10

In this question , just look to the given table where row and columns are addends . The table show their respective addition. To find 5 + 5 just follow the table.

Find the option that has a sum of 7

In this question, calculate all the options and then match with 7 which one is correct.

Calculate 3 + 10  =  _______.

In this question , just look to the given table where row and columns are addends . The table show their respective addition. To find 3 + 10 just follow the table.

Use fact patterns to complete each equation.
1 + 3 = 4
2 + _____  = 4

In this question, just look the table to find the given addition . One equation is already given just follow the same pattern for the another equation .

You can rewrite 9 + 5 to make a ten as,

In this question ,we have to make the first number to 10. Make the first number to 10 and add remaining number. It make your addition easy.

You can rewrite 7 + 4 to make a ten as,

In this question ,we have to make the first number to 10. Make the first number to 10 and add remaining number. It make your addition easy.

Identify the doubles plus 1 fact that can be used to solve 5 + 4 = 9

In this question , we have to find the double plus 1 . Double plus 1 is only used in consecutive number like 9 + 8 which solution is 17 but by double plus 1 it will be 8 + 8 = 16 it will be double addition then 16 + 1 = 17 . So it make the addition easy.

Identify the equations below that uses to make a 10 to solve.

In this question ,we have to find the equation which makes 10 to solve. To solve 10,it has to make the first number to 10. Make the first number to 10 and add remaining number. Find the correct form in the given options.

You can write 8 + 4 to make a ten as,

In this question ,we have to make the first number to 10. Make the first number to 10 and add remaining number. It make your addition easy.