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3 years ago

Number sentence commutative property of addition 3+9=12

Mathematics

2 answers:

erastova [34]3 years ago

7 0

3+9=12 and 9+3=12

you can change the order and not change the answer

mash [69]3 years ago

4 0

9+3 ←commutative property of 3+9

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3 years ago

How to evaluate the expression

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Step-by-step explanation:

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3 years ago

a school had 690 students sign up for the trivia teams if they wanted to have nine teams with the same number of students on eac

uysha [10]

Answer:

3 more students need to sign up

Step-by-step explanation:

Let the equal number of students in 9 teams be x.

Total number of signed up students = 690.

Let t be the required number of students to be signed.

Therefore, 9x = 690+t.

This means, 690+t is a multiple of 9.

The least value of t to make 690+t, a multiple of 9 is 3 and hence,

$\frac{693}{9}$

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3 years ago