IGCSE /Grade 7
Maths MCQ Based On Subtracting integers using counters
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IGCSE Grade 7 Maths Subtracting integers using counters
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You would like to take away 1 positive counter. However, it's not possible to take away 1 positive counter, because there aren't any positive counters in the first group. You can fix this problem by adding 1 pair of positive and negative counters to the first group
Two negatives sign together makes a positive.
Look at the sign of counters and the operation you need to perform.
Take away two counters from six.
You would like to take away 1 positive counter. However, it's not possible to take away 1 positive counter, because there aren't any positive counters in the first group. You can fix this problem by adding 1 pair of positive and negative counters to the first group
We have to take away.
The subtraction operation makes a positive counter to a negative counter.
Start with the first number and go 3 steps further in negative.
You would like to take away 1 positive counter. However, it's not possible to take away 1 positive counter, because there aren't any positive counters in the first group. You can fix this problem by adding 1 pair of positive and negative counters to the first group
Subtract three counters from 10.
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