Two different ways to find the difference for 12-3

2 answers:

6 0

You can either ask "How much is left when you take 3 away from 12?", or you can ask "How far apart are the numbers 12 and 3 on the number line?"

Another way you could think about it is "what number do I have to add to 3 to get to 12?"

MrRissso [65]3 years ago

3 0

First, you could count from 3 up to 12 and record the number between them. Second, you could use mental math and try to figure out mentally. The answer is 12-3= 9

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What answer is this If m = 70° and m = 30°, then m 2 =

allochka39001 [22]

Ill say angle 1, that is 1/2 the difference of two arcs i.e. (Big -small)/2

VU- ST/ 2 = angle 1

replace the formula 20 and angle 1 with 30

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3 years ago

2z + 4y +8y - 32<br> How to solve

Sindrei [870]

Answer:

2z + 12y - 32

Step-by-step explanation:

1) 2z cannot be combined with any other number because no other number has the variable z.

2) 4y and 8y are both positive and van be combined. Therefore, it is 12y.

3) -32 cannot be combined with any other number because it doesn't have a variable that is the same as the others.

Therefore, the answer is 2z + 12y - 32

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