In this lesson, we will explore dividing numbers by partitioning into multiples and dividing the parts. We will start with calculations that involve dividing by a single digit making links to the multiplication calculations in the last lesson. We will then find multiples of 2-digit numbers and use these to divide by partitioning into multiples in order to divide each part.
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Which of the following statements about a prime number is true?
Correct answer: A prime number can only have two factors.
A prime number can only have two factors.
A prime number multiplied by a prime number will give a product that is a prime number
All prime numbers are odd.
The largest prime number is 97
Q2.
Using distributive law, which of the following number statements is FALSE?
10 X 6 = 5 X 6 + 5 X 6
Correct answer: 12 X 3 = 4 X 1 + 4 X 1 + 4 X 1
12 X 3 = 4 X 1 + 4 X 1 + 4 X 1
22 X 2 = 20 X 2 + 2 X 2
3 X 6 = 3 X 3 + 3 X 3
Q3.
Look at the bar model below which is similar to other bar models used during the lesson. Which number statement does the bar model correctly represent to help us calculate the total number of swimmers?
12 x 4 x 3
3 x 3 x 4
4 x 2 x 2
Correct answer: 4 x 3 x 4
4 x 3 x 4
Q4.
Below is an area model. What is the product of this area model?
15
30
Correct answer: 45
45
9
Q5.
During the lesson, we demonstrated how an area model could be arranged to show distributive law after one of the factors was partitioned. If the product for a calculation is 120, what are the two missing values?