Cambridge Primary Math 5 - Units 23, 24, and 25

(a)   numbers are numbers that increase from smallest to largest one after the other, without any gaps.

Look at the sequence of squares. There is one square in the first row, three squares in the second row, and five squares in the third row. Find the rule for the sequence and calculate how many squares will be in the 78th row.

• 80

• 155

• 278

• 162

• none of the above

A (a)   is a list or pattern of numbers arranged according to a rule.

Look at the picture and check the three answers that belong in the sequence

• 1020

• 16

• 1024

• 2048

A part of a sequence separated by commas.

• term

• factor

• multiple

• pattern

The rule that describes this sequence is (a)   of five.

Five consecutive numbers can be written in these five circles and their sum will equal 50. Select any answer below that could be one of the five consecutive numbers.

• 7

• 8

• 10

• 11

• 13

Look at the sequence. What would the 99th number in this sequence be?

• 99

• 198

• 199

• 100

"Adding two even numbers will always result in an odd number"

Select the counter example to this general statement.

• 2 + 2 = 4

• 2 + 3 = 5

• 3 + 3 = 6

• 3 + 2 = 5

A ____________ ____________ is a statement that is not about particular examples and it is a rule that always works.

• math statement

• correct statement

• general statement

• mathematical rule