Math KG : Worksheet 5 : Subtracting numbers by counting back

1 Fill in the blanks 

a) 6 - 1 = _________

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 1

leave one finger

Step 3 

now lets look for the another number which is 6 here

since its - we have to count back

we left one finger : already we are having 6 - count backwards which is 5

hence  6 - 1 = 5

b) 5 - 4 = ________

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 4

lets leave four fingers

Step 3 

now lets look for the another number which is 5 here

since its - we have to count back

we left four fingers : already we are having 5 - count backwards

first finger goes with 4
second finger goes with 3
third finger goes with 2
fourth finger goes with 1

hence  5 - 4 = 1

2 Write the subtraction sentences in the boxes provided. Then fill in the blanks.

a) what is the differences between 10 and 6?

Differences which means we have to do subtraction

so  the subtraction sentence is 10 - 6 = ____

now lets find 10-6 = ?

Method 1

we can use number tracks to find the differences

first in the number track, mark 10 and 6

now lets check to reach 6 from 10 how many steps we have to move

hence 10 - 6 = 4

Method 2

Step 1

Check whether its + or -

here its -

Step 2 

find the smallest number

here the smallest is 6

lets leave six fingers

Step 3 

now lets look for the another number which is 10 here

since its - we have to count back

we left four fingers : already we are having 10 - count backwards 

first finger goes with 9
second finger goes with 8
third finger goes with 7
fourth finger goes with 6
fifth finger goes with 5
sixth finger goes with 4

hence  10-6 = 4