Fill in 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=2.3
-0.2 -0.2
7.3 - 5.0=2.3
e) 9.8 - 4.9=4.9
+0.1 +0.1
9.9 - 5.0=4.9
f) 15.3 - 7.7=7.6
+0.3 +0.3
15.6 - 8.0=7.6
g) 12.6 - 3.8=8.8
+0.2 +0.2
12.8 - 4.0=8.8
h) 11.6 - 4.7=6.9
+0.3 +0.3
11.9 - 5.0=6.9
i) 17.4 - 2.8=14.6
+0.2 +0.2
17.6 - 3.0=14.6
j) 7.5 - 5.1=3.4
-0.1 -0.1
7.4 - 4.0=3.4
k) 8.3 - 2.9=5.4
+0.1 +0.1
8.4 - 3.0=5.4
l) 16.4 - 2.8=13.6
+0.2 +0.2
16.6 - 3.0=13.6
m) 15.4 - 12.1=4.3
-0.1 -0.1
15.3 - 11.0=4.3
n) 13.4 - 4.3=9.1
-0.2 -0.2
13.2 - 4.1=9.1
o) 15.8 - 3.9=11.9
+0.1 +0.1
15.9 - 4.0=11.9
Complete these following activities:
a) 11.3 - 2.8=11.9
b) 13.5 - 6.9=7.4
c) 15.3 - 2.1=13.1
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 problem:
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 35.6 litres of water. If the staff drinks 7.3 litres of water at morning tea. How much water will be left? 28.3
7) A car had 25.6 litres of petrol in its tank. It uses 9.8 litres 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? 33.6
9) I had 27.3 metres of rope but 8.7 metres broke off the end. How much rope do I have left? 19.4
Hi Asena! I love your name! My name is MeLeah Miller, and I am from the United States. I am a student at the University of South Alabama which is located in Mobile, Alabama. I'm in a class called EDM310, and it requires me to create a blog and comment on blogs of other students around the world. I've never been out of the country, so it is very cool to see your posts all the way from New Zealand! I enjoyed seeing what you are learning in math this week! It's amazing how much you already seem to know about blogging! I had no knowledge about blogs until I reached this college course. Keep up the good work, and I wish you the best of luck for the rest of this school year! If you would like you can visit My Blog or our class blog.
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