Multiplying Larger Numbers

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Presentation transcript:

Multiplying Larger Numbers Array Model

Use Base 10 blocks to solve the problem There are 36 trees in each row. There are 4 rows of trees. How many trees are there?

SOLUTION

ARRAY

Use base 10 blocks to solve the problem There are 34 eggs in the basket. There are 6 baskets. How many eggs are there altogether?

Draw the array on grid paper There are 34 eggs in the basket. There are 6 baskets. How many eggs are there altogether?

Solve the equation 6 X 34 = ? 6 X 30 = 180 6 X 4 = 24 180 + 24 = 204

Another Way We Can Solve 6 X 34 180 (think: 6 X 30) + 24 (think: 6 X 4) 204 (the product - answer)

What is the Product? Solve: 4 X 123 = ?

Solution 4 X 123 = ? 4 X100 = 400 4 X 20 = 80 4 X 3 = 12 400 + 80 + 12 = 492 123 X 4 12 (think: 4X3=12) 80 (think: 4X20=80) +400 (think: 4X100=400) 492