Adding with a Number Grid upto Number 100:
To Add Numbers to 100, You can also use a number grid or 100 squares. this shows the numbers from 1 to 100 in row of 10. you can do calculations by jumping from square to square.
1. let's add 56 and 26 using this number grid.
2. the addition starts with 56, so let's mark it on the grid
3. there are 2 groups of 10 in 26, so we need to jump down 2 rows. this takes us to 76.
4.now we add the 6 ones from our 26 by jumping 6 squares to the right. this takes us to 82.
5.so, 56+26=82
Doing calculations in your head can be tricky. We can use a number line to help us with calculations, including addition. it is most useful for calculations with numbers up to 20.
1. add 4 and 3 using a number line
2. first we draw a line and mark it with numbers from 0 to 10.
3. this calculation starts with the number 4, so first, find 4 on a number line.
4. we need to add 3 to 4, so next jump 3 places to the right. this takes us to 7.
5. so, 4+3=7
1. lets use number line with larger numbers to find 20+50=70
