Question

Find : 7 + 18 + 13; 16 + 12 + 4 Using associative property

Answer 1

Step-by-step explanation:

7+18+13=(7+18)+13=25+13=38

16+12+4=(16+12)+4=28+4=32

Answer 2

Answer:

The value of $7 + 18 + 13$ is $38$.

The value of $16 + 12 + 4$ is $32$.

Step-by-step explanation:

1) $7 + 18 + 13$

Step 1 of 3

Consider the expression as follows:

$7 + 18 + 13$

According to associative property,

$(7+18)+13 = 7+(18+13)$

Step 2 of 3

Evaluate the left-hand side as follows:

$(7+18)+13 = 25+13$

                    $=38$

Step 3 of 3

Evaluate the right-hand side as follows:

$7+(18+13) = 7+31$

                    $=38$

This implies that the left-hand side equals to the right-hand side.

Using associative property, we get

$7 + 18 + 13=38$

2) $16 + 12 + 4$

Step 1 of 3

Consider the expression as follows:

$16 + 12 + 4$

According to associative property,

$(16+12)+4 = 16+(12+4)$

Step 2 of 3

Evaluate the left-hand side as follows:

$(16+12)+4 =28+4$

                    $=32$

Step 3 of 3

Evaluate the right-hand side as follows:

$16+(12+4) = 16+16$

                    $=32$

This implies that the left-hand side equals to the right-hand side.

Using associative property, we get

$7 + 18 + 13=38$

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