Joe's Problem Solving Strategies

The video tutorial explains how to determine the number of math problems Joe started with. Joe completed 23 problems alone, 13 with help, and had 9 left. The instructor guides viewers through the process of adding these numbers to find the starting total, using a step-by-step breakdown of the addition process. The final calculation confirms that Joe began with 45 problems.

How many problems did Joe solve by himself?

• 13

• 9

• 45

• 23

Tags

CCSS.2.OA.A.1

How many additional problems did Joe solve with help?

• 9

• 23

• 45

• 13

Tags

CCSS.2.OA.A.1

What is the total number of problems Joe solved with and without help?

• 36

• 45

• 13

• 23

Tags

CCSS.2.OA.A.1

What is the sum of the problems Joe solved and the remaining problems?

• 23

• 9

• 45

• 36

Tags

CCSS.2.OA.A.1

How many problems were left after Joe solved some with and without help?

• 13

• 9

• 45

• 23

Tags

CCSS.3.OA.D.8

What is the first step in calculating the total number of problems Joe started with?

• Add 23 and 13

• Subtract 9 from 45

• Divide 45 by 3

• Multiply 23 by 2

Tags

CCSS.2.OA.A.1

What is the result of adding 36 and 9?

• 45

• 9

• 36

• 23

Tags

CCSS.2.OA.A.1

How can you verify the total number of problems Joe started with?

• Divide 45 by 9

• Multiply 9 by 5

• Subtract 23 and 13 from 45

• Add 23 and 13

Tags

CCSS.2.OA.A.1

What is the final number of problems Joe had at the start?

• 9

• 23

• 36

• 45

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

If Joe had 45 problems initially, how many would be left after solving 23 and 13?

• 36

• 23

• 45

• 9

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2