Arrange the following numbers in descending order. (2 marks)
`-1 , -5, 2 , 4, -3`
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Lindy is using a number line to show a pattern.
What are the next two numbers in Lindy’s pattern? (2 marks)
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`-7\ text(and) -4`
`text(The numbers are increasing by 3 each time.)`
`text(The first number is: )-10+3 =-7`
`text(and the second number is: )-7+3 = -4`
`:.\ -7\ text(and) -4\ text(are the next 2 numbers)`
Trad is using a number line to show a pattern.
What are the next two numbers in Trad’s pattern? (2 marks)
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`-6\ text(and) -11`
`text(The numbers are decreasing by 5 each time.)`
`text(The first number is: )-1-5 = -6`
`text(and the second number is: )-6-5 = -11`
`:.\ -6\ text(and) -11\ text(are the next 2 numbers)`
A buoy is in the ocean recording the height of waves passing by.
At sea level it measures 0 metres. It moves above and below sea level.
Which list gives four sea level recordings arranged in order from lowest to highest?
`D`
`=> D`
Which symbol `( <, = , >)` makes the number sentence correct? (1 mark)
`2 - (4 + 3)` | |
`3 + 1 - 8` |
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`<`
`2\-\(4 + 3)` | `<3 + 1\-\8` |
`2\-\7` | `<4\-\8` |
`\-\5` | `<\-\4` |
Which of the following changes is the smallest?
`B`
`text(Consider each option:)`
`-8\ text(to)\ -4` | `=\ text(4° change)` |
`-5\ text(to)\ -2` | `=\ text(3° change)` |
`-2\ text(to)\ 3` | `=\ text(5° change)` |
`3\ text(to)\ 7` | `=\ text(4° change)` |
`:.\ -5^@\ text(C to)\-2^@text(C is the smallest change.)`
`=> B`
Pen wrote the following number sequence.
`4, 2, 0, \-\2, \-\4`
What are the next four numbers in Pen's number sequence? (2 marks)
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`\-\6, \-\8, \-\10, \-\12`
`text(The numbers are decreasing by 2 each time.)`
`:.\ text(The next four numbers are: )\-\6, \-\8, \-\10, \-\12`