Addition Subtraction and Multiplication Problem Solving

What would be my first step in solving this problem?
3 + 4 ∗ 6 - 4

• addition

• multiplication

• subtraction

• exponents

Find and explain the mistake.    
 5 - 3 + 2   = 5-5 = 0

• You did the subtraction wrong

• You did the addition first, but should have done the subtraction first.

• The additon is correct, but the subtraction is wrong.

• There is no mistake.

What would be the first step? 9- 7 + 3 x 2 =

• multiplication

• exponents

• dividing

• subtraction

What would be the answer of 17 - 9 + 6 =

• 2

• 12

• 14

• 11

Solve: 345 + 567 - 123 = ?

• 789

• 456

• 234

• 678

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Stephanie and Becca raised money for her school fundraiser. Stephanie raised $812 and Becca raised $915. How much money did the girls raise in all? (Numbers ONLY)

Use mental math to solve.

120 + 42 + 80

Solve:
246 + 553 = ?

• 313

• 799

• 809

• 307

125 + 36 + 124 + 239=

• 530

• 526

• 524

• 531