Adding and Subtracting Weights 1. Weigh a lunchbox and write the weight here: Weigh a book and write the weight here: Add the two weights together and write the answer here:


Now put both items on the scales at the same time to see if you got the correct answer. Did you?


2. Weigh a paint bottle and write the weight here: Weigh a schoolbag and write the weight here: Add the two weights together and write the answer here:


Now put both items on the scales at the same time to see if you got the correct answer. Did you?


3. What is the difference between the weight of 6 copies and the weight of 2 copies? Weigh 6 copies together and write their weight here: Weigh 2 copies together and write their weight here:


Take the smaller weight away from the bigger and write the answer here:


Now put 6 copies on the scales and take away 2 to see if you got the correct answer. Did you?


4. Can you work out the weight of your shoes without actually weighing them on their own? You are allowed to weigh yourself wearing your shoes and to weigh anything else. Explain what you did and show your calculations in the box.


Now try these: 5.


a) kg g 6 456


+ 1 135 6.


a) kg g 6 850


+ 4 714


b) kg g 0 198


+ 2 281


b) kg g 1 588


– 0 851


c) kg g 8 390


– 1 557


c) kg g 2 024


– 1 251


d) kg g 2 200


– 1 999


e) kg g 1 219


– 0 065


7. Use your copy to work out these answers.


a) 4kg 386g + 9kg 214g = b) 1kg 300g – 856g = c) 6kg 4g + 999g =


178 Weight


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