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Whiteboardmaths.com © 2004 All rights reserved

Thermometer Read the temperature on the thermometer as it changes oCoC

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes. 00C00C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

oCoC Read the temperature on the thermometer as it changes C

Difference What is the difference in temperature between the two thermometers? 40 degrees oCoC oCoC

What is the difference in temperature between the two thermometers? oCoC oCoC 15 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 30 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 30 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 65 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 10 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 20 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 15 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 10 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 20 degrees

What is the difference in temperature between the two thermometers? oCoC oCoC 70 degrees

Sea level 0m 10m 20m 30m -10m -20m -30m Estimate the height above or below sea level of the following points: 15m -10m 5 m 20 m 6 m -15 m -25 m -30 m 25 m -5 m 30 m -25 m

50m -20m -40m -60m 0m 20m 40m 60m -10m 40m 50m -10m -5m -30m - 40m - 25m - 60m Estimate the height above or below sea level of the following points: 57m 15m

Calculate the difference in height between the following: 15m -10m 5 m 20 m 6 m -15 m -25 m -30 m 25 m -5 m 30 m -25 m The helicopter and the lighthouse: 15m The dolphin and the seal: 10m The hot air balloon and the lobster: 30m The boat and the fish. 21m The flock of birds and the sea horse. 50m 30m The dolphin and the jelly fish.The lobster and the anchor. 20m The jelly fish and the sea horse. 0m The helicopter and the anchor. 60m

50m -10m 40m 50m -10m -5m -30m 15m - 40m - 25m - 60m 57m Calculate the difference in height between the following:The hang glider and the aeroplane: The kite and the seagull:The kite and the diver:The hot air balloon and the octopus.The seagull and the nautilus.The diver and the octopus.The turtle and the submarine. The pearl and the submarine. The diver and the sextant. 17m 35m55m60m 40m 5m 30m 10m 55m The hot air balloon and the pearl. 80m The hang glider and the sextant. 117m

Number Line Negative Numbers on the Number Line Negative numbers are useful for representing quantities that can have values below zero. Examples include temperature, debt and heights below sea level. The part of the number line that consists of the positive and negative whole numbers, together with zero, are called the integers. To add numbers on a number line simply count to the right ADD + Subtract - To subtract numbers on a number line simply count to the left.

Adding = = = = =3 Negative Numbers on the Number Line

= = = = = = = = = = Adding + You may use the number line if you wish, to answer the following: Negative Numbers on the Number Line

Subtracting = = = = – 7 =-9 Negative Numbers on the Number Line

Subtracting - You may use the number line if you wish, to answer the following: = = = = = = = = = = Negative Numbers on the Number Line

Blank Scale 1 0m m m m m m m Estimate the height above or below sea level of the following points: m m m m m m m m m m m m

Blank Scale 2 Estimate the height above or below sea level of the following points: m m m m 0m m m m m m m m m m m m m m m

Blank difference 1 m m m m m m m m m m m m

Blank difference 2 m m m m m m m m m m m m

Blan k Ther mo met er oCoC oCoC oCoC