Today we looked at number pairs that add up to 100 and 1000. We noticed a pattern. The numbers in the first column, before the plus sign, count upwards. They count in steps of 5 for the pairs that add up to 100. They count in steps of 50 for the numbers that add up to 1000. Do you know which number pairs are missing from the parts where the paper is torn?
Wednesday, January 18, 2012
Maths: adding to 100 and 1000
Today we looked at number pairs that add up to 100 and 1000. We noticed a pattern. The numbers in the first column, before the plus sign, count upwards. They count in steps of 5 for the pairs that add up to 100. They count in steps of 50 for the numbers that add up to 1000. Do you know which number pairs are missing from the parts where the paper is torn?
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