Mastering Multiplication and Regrouping in 4th Grade Math

The video tutorial, led by Mr. Rory, covers a variety of math topics including number sentences, multiplication, estimation, and problem-solving using real-world scenarios. The tutorial begins with a friendly interaction with a cardinal and proceeds to review chapter 2, focusing on common core math concepts. It includes exercises on multiplying numbers, estimating products, and using place value and expanded form. The video also features a practical problem involving the cost of building in a game and a card collection problem, emphasizing the application of math in everyday situations.

What is the first math problem discussed in the video?

• Calculating the cost of building apartment buildings

• Writing an equation using numbers on tiles

• Finding the product using place value

• Multiplying 7 by 43

What multiplication model is used for the number 32?

• 8 times 3

• 8 times 5

• 8 times 4

• 8 times 4 equals 32

What is the purpose of Common Core math according to the video?

• To introduce new numbers

• To eliminate traditional math methods

• To make math harder

• To improve understanding of math

What method is used to estimate the product of 7 times 40?

• Regrouping

• Partial products

• Rounding to nearest ten

• Common Core

What is the result of multiplying 43 by 7?

• 350

• 210

• 280

• 301

How many points are needed to build one apartment building in the computer game?

• 301 points

• 280 points

• 4620 points

• 9328 points

What is the total cost to build five apartment buildings in the game?

• 46000 points

• 93280 points

• 46640 points

• 50000 points

How many baseball cards does Liam have after buying 50 more?

• 150 cards

• 250 cards

• 200 cards

• 300 cards

How many basketball cards does Liam have?

• 200 cards

• 150 cards

• 250 cards

• 300 cards

What is the total number of baseball and basketball cards Liam has?

• 400 cards

• 450 cards

• 350 cards

• 500 cards