Now I ask you how much added to 3 wiil give 7. In other words, fill in the blank 3 + --- = 7.
Here also you have to close all your fingers first. To solve this question, you have to start counting after 3 (to which some thing is to be added) by rising one finger for each count till you get the count equal to seven (the value present on the right hand side of equal to symbol).
You start saying four and rise one finger. Then say five and rise another finger. Then say six and rise one more finger. Then say seven and rise another finger. This is the last step, since seven is reached.
Now, count the raised fingers which are 4. So the answer in the blank is 4. Ans
Let us see one more example.
Example 4 of Addition :
Fill in the blank --- + 4 = 9
Whether the blank is first or second, the procedure is same.
Here also you have to close all your fingers first. To solve this question, you have to start counting after 4 (to which some thing is to be added) by rising one finger for each count till you get the count equal to nine (the value present on the right hand side of equal to symbol).
You start saying five and rise one finger. Then say six and rise another finger. Then say seven and rise one more finger. Then say eight and rise another finger. Then say nine and rise another finger. This is the last step, since nine is reached.
Now, count the raised fingers which are 5. So the answer in the blank is 5.
Exercise 1B : single digit numbers' addition
Fill in the Blanks.
--- + 6 = 9
3 + --- = 6
5 + --- = 8
--- + 9 = 9
4 + --- = 8
--- + 4 = 6
--- + 3 = 4
6 + ---- = 9
--- + 1 = 3
3 + --- = 5
For Answers see at the end of the page.
Progressive Learning of Math : Addition
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