Chapter 3 Part 1 Multiplication | Baamboozle - Baamboozle

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Prove that 11 x 11 = 121 without using repeated addition.

Teacher decides if work on board is acceptable.

List the first ten multiples of 3 in order:

3, 6, 9, 12, 15, 18, 21, 24, 27, 30

What are the factors of 15?

1, 3, 5, 15

212 x 3

636

53 x 14

742

4 x 112

448

Find the product of 3762 and 2

7,524

1,302 x 9

11,718

80 x 90

7,200

Is 11 a prime or composite number? Why?

It is a Prime number because it has only 2 factors, 1 and 11

40 x 30

1,200

Lincoln has 4,132 Lego pieces. Mr. Brace has four times the amount. How many Lego pieces does Mr. Brace have altogether?

16,528

Is 21 a prime or composite number? Why?

It is a Composite number because it has more than 2 factors. 1,3,7,21

23 x 16

368

9123 x 7

63,861