Mathematical Problem Solving Techniques

The video covers several math problems for seventh-grade students. It begins with estimating the weight of six apples using multiplication. Next, it involves selecting stories that can be represented by a tape diagram. Andre's savings plan is discussed, where he saves money weekly to buy a gift, considering his donations. The video then explores determining the greatest value among expressions without evaluating them. Finally, it solves equations involving negative numbers, demonstrating different solving techniques.

If two apples weigh 511 grams, what is the estimated weight of six apples?

• 1022 grams

• 1533 grams

• 2555 grams

• 2044 grams

What is the estimated weight of six apples if two apples weigh 511 grams?

• 1022 grams

• 2555 grams

• 1533 grams

• 2044 grams

Which story can be represented by a tape diagram where 87 items are divided after removing 39?

• 87 spent on tickets and a dinner

• 87 pencils with 39 given to a teacher

• 87 first graders with 39 picked up

• 87 children and 39 adults at a show

Which of the following is a correct representation of a tape diagram?

• 87 first graders with 39 picked up

• 87 spent on tickets and a dinner

• 87 children and 39 adults at a show

• 87 pencils with 39 given to a teacher

How much does Andre's neighbor pay him each week if he saves $40 in five weeks after donating $2 weekly?

• $6

• $8

• $10

• $12

Which expression has the greatest value?

• A negative times a positive

• A negative plus a negative

• 7 and 5/6 minus 9 and 3/4

• A negative divided by a negative

What is the result of 8.5 times negative 3?

• -25.5

• 25.5

• -8.5

• 8.5

Solve for b: -7 + b = -11.

• b = 18

• b = -4

• b = -18

• b = 4

What does c equal if c minus a negative 3 equals 15?

• c = 18

• c = 9

• c = 12

• c = 15

If d times a negative 4 equals 32, what is d?

• d = -8

• d = 8

• d = -32

• d = 32