Look at the tips which will help your kids to solve maths problem easily using these mental mathematics tips. Here we are talking how we can quickly add a series of numbers quickly.
Step 1: Try to find out the compliment of numbers (Click HERE to know the what is the complement of a number)
Step 2: Club the complements together and add the remaining number in series.
1) 8 + 9 + 2
Do not follow the numbers in the series as they are written. Club the compliments together and mark
8 + 2 = 10 + 9 = 19
2) 14 + 21 + 6
Now 14+6 = 20 + 21 = 41
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- Check HERE to download ebook of 200 sums on Mental Mathematics for grade 1.