Let’s solve each problem one by one, step by step.
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Problem 1: Ribbons
Jasmine’s ribbon = 12.6 metres
Sharon’s ribbon is 3.8 metres shorter → so subtract 3.8 from Jasmine’s length:
Sharon’s ribbon = 12.6 - 3.8 =
8.8 metres
Total length = Jasmine’s + Sharon’s = 12.6 + 8.8
Let’s add:
12.6
+8.8
= 21.4
✔ Total =
21.4 metres
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Problem 2: Jugs of Water
Jug A = 2.17 litres
Jug B has 0.79 litres less than Jug A → subtract:
Jug B = 2.17 - 0.79
Let’s calculate:
2.17
-0.79
= 1.38 (because 2.17 - 0.70 = 1.47, then -0.09 more = 1.38)
Total volume = Jug A + Jug B = 2.17 + 1.38
Add:
2.17
+1.38
= 3.55
✔ Total =
3.55 litres
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Problem 3: Trees
Coconut tree = 7.6 metres
Mango tree is 3.4 metres shorter → subtract:
Mango tree = 7.6 - 3.4 =
4.2 metres
Total height = 7.6 + 4.2 =
11.8 metres
✔ Total =
11.8 metres
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Problem 4: Sacks of Potatoes
Sack A = 32.5 kg
Sack B has 3.7 kg MORE than Sack A → add:
Sack B = 32.5 + 3.7 =
36.2 kg
Total mass = 32.5 + 36.2
Add:
32.5
+36.2
= 68.7
✔ Total =
68.7 kg
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Final Answer:
1. 21.4 metres
2. 3.55 litres
3. 11.8 metres
4. 68.7 kg
Parent Tip: Review the logic above to help your child master the concept of 6th grade decimal word problems worksheet.
