Fill the gaps:
a) 8.4 - 2.9=5.5
+0.1 +0.1
8.5 - 3.0=5.5
b) 6.3 - 2.8=3.5
+0.2 +0.2
6.5 - 3.0=3.5
c) 12.7 - 3.1=9.6
-0.1 -0.1
12.6 - 3.0=9.6
d) 7.5 - 6.2=1.3
-0.2 -0.2
7.3 - 6.0=1.3
e) 9.8 - 4.9=5.9
+0.1 +0.1
9.9 - 4.0=5.9
f) 15.3 - 7.7=8.6
+0.3 +0.3
15.6 - 7.0=8.6
g) 12.6 - 3.8=8.8
+0.2 +0.2
12.8 - 3.0=8.8
h) 11.6 - 4.7=7.9
+0.3 +0.3
11.9 - 4.0=7.9
i) 17.4 - 2.8=15.6
+0.2 +0.2
17.6 - 2.0=15.6
j) 7.5 - 5.1=2.4
-0.1 -0.1
7.4 - 5.0=2.4
k) 8.3 - 2.9=6.4
+0.1 +0.1
8.4 - 2.0=6.4
l) 16.6 - 2.8=14.6
+0.2 +0.2
16.6 - 2.0=14.6
m) 15.4 - 12.1=3.3
-0.1 -0.1
15.3 - 12.0=3.3
n) 13.4 - 4.3=9.1
-0.2 -0.2
13.2 - 4.1=9.1
o) 15.8 - 3.9=12.9
+0.1 +0.1
15.9 - 3.0=12.9
Complete these following activities:
A) 11.3 - 2.8=8.5
B) 13.5 - 6.9=7.4
C) 15.3 - 2.1=13.2
D) 7.6 - 4.7=3.1
E) 12.5 - 7.8=5.3
F) 16.1 - 5.7=11.6
G) 12.2 - 4.1=8.1
H) 16.6 - 0.9=16.3
I) 8.5 - 1.8=7.3
Word problems:
1) A gardener has a hose which is 15.5 metres long. It gets a hole at one end so he cuts off 4.8 metres. How long is the hose now? 11.3
2) Jodie can jump 3.4 metres. Her sister jumped 1.8 metres less than that. How far did her sister jump? 2.4
3) Ben has a roll of tape which is 13.4 metres long. He has used 6.2 metres. How much tape does he have left? 7.2
4) A tree is 18.5 metres tall. They need to make the tree 4.7 metres shorter. How tall will the tree be then? 14.2
5) A building is 68.7 metres tall including the flag pole. The flag pole is 4.8 metres tall. How tall would the building be if the flag pole was removed? 64.1
6) A large water container at work holds 36.6 liters of water. If the staff drink 7.3 liters of water at morning tea how much water will be left? 29.3
7) A car had 25.6 liters of petrol in its tank. It uses 9.8 liters of petrol. How much petrol is left? 16.2
8) A 56.3 metre yellow line must be painted down the side of the road.They have already painted 29.9 metres of the line. How much more must they paint? 26.4
9) I had 27.3 metres of rope but 8.7 metres broke off the end. How much rope did I have left? 19.4.
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