KS2 Primary Maths Age 9-13 - Sequences: - Explained

The video tutorial explains how to find specific numbers in arithmetic sequences. In the first part, the teacher demonstrates finding the first number in a sequence where the 4th and 5th numbers are given, using a step of five. In the second part, the teacher shows how to find the third number in a sequence that transitions from negative to positive numbers, using a step of four. The tutorial emphasizes understanding the steps and calculations needed to determine the missing numbers in each sequence.

What is the first number in the sequence if the 4th number is 38 and the 5th number is 43?

• 23

• 28

• 33

• 38

How many marks are awarded for correctly identifying the first number in the sequence?

• Four marks

• Two marks

• One mark

• Three marks

What is the third number in the sequence starting from -7 and ending at 9?

• -3

• 0

• 4

• 1

How many steps are needed to go from -7 to 9 in equal steps?

• 3 steps

• 5 steps

• 4 steps

• 2 steps

What is the step size when counting from -7 to 9?

• 2

• 3

• 5

• 4