**Write the instructions for solving each of the calculations below. **

a. 234 – 143

b. 317 – 181

c. 543 – 426

d. 353 – 135

**Use the following terms whenever you can;**

** subtraction, units, tens, hundreds, place value columns, exchange, total, **

**Challenge – use time connectives such as first, then, after, finally.**

1.first you do the sum that you have been given.

234-143

2.next you write h t u and write your number below.

h t u

2 3 4

1 4 3

3.then you do a line below your numbers.

h t u

2 3 4

1 4 3

——-

4. you start to work out the answer by starting with u. so you do 4-3=1

h t u

2 3 4

1 4 3

—–

1

5.then you do 3 subtract 4 which is impossible. so we use 1 from the h and put it infront of the 3. so the sum for the t is 13-4=9.

h t u

2 3 4

1 4 3

——-

9 1

6. then you do the h and it is 1-1=0 because we took 1 earlier.

h t u

2 3 4

1 4 3

——-

0 9 1

——-

3.put the number you are taking away in the right column.

th h t u

234

143

4.put the takeaway sighn between the numbers.

Th h t u

2 3 4

– 143

5.put a line underneath they numbers.

Th h t u

2 3 4

– 143

——————

6.finally add the total which is 101

Th h t u

2 3 4

– 143

—————-

101

1.234-143

First you write Th h T u

next you put the hudred under the hundrends colums.do same for tens and units

Th h T u

2 3 4

do same again for 143

Th h t u

2 3 4

1 4 3

then you do the take away sighn next to the Th

Th h t u

– 2 3 4

1 4 3

______________

then you start from the u colums

Th h t u

– 2 3 4

1 4 3

_______________

1

then you do it for your t H

Th h t u

2 3 4

– 1 4 3

_____________________

9 1

then you cant do 3 – 4 so you exchange wich brings you 9 Finally you do the hundreds colum

Th h t u

2 3 4

–

1 4 3

__________

0 9 1

234 – 143

first you write your H T U

H T U

next you write your number underneath . 234

143

after that you take away the bottom numbers from the top number.you take away your units first then your tens and then your 100.

a.First I have to write hundreds tens and units then write your numbers underneath.

b.do a line then if you do subtraction it the same as adding

c.take away the nunbers

H T U

234

–

143

_______

100

a. 234-143

first you write TH H T U.

next you put the right column

TH H T U

2 3 4

then you do the same with the 143

TH H T U

2 3 4

1 4 3

_________

then you start from the U column

TH H T U

2 3 4

1 4 3

__________

1

then you go to the H column

a. 234-143

first you write TH H T U.

next you put the right column

TH H T U

2 3 4

then you do the same with the 143

TH H T U

2 3 4

1 4 3

_________

then you start from the U column

TH H T U

2 3 4

1 4 3

__________

1

then you go to the H column

TH H T U

2 3 4

1 4 3

________

9 1

then you end with the H

TH H T U

2 3 4

1 4 3

________

0 9 1

a. 234 – 143=

1.First we have to write Hundreds,Ten and Unit.

2.Your next step is to write the 2,3 and 4 underneath the Hundreds,Ten and Unit column.

3.Then draw a line to split the sums and the answers so they do not get messed up.

4.Now you have to start from the units to get your answers right.

H T U

2 13 4

– 1 4 3

___________

1

5.So now you have to take away 4 from 3 which is 1.

6.Then you have to take away 3 from 4 you can’t do that so you have to exchange a ten from the hundreds column

which will make it easerier for us because now it will be 13-4.The answer would be 9.

7.There is going to be a 1-1=0

8.Now the answer is 91.

H T U

2 3 4

1 4 3

___________

0 9 1

1.first i have to set out my numbers into my thousends,tens,hundrened,units.

TH H T U

2 3 4

– 1 4 3

___________

1 1 1

a.234-143

first you write H T U.

next you write 234 under H T U.

then you do the same for 143.

after you draw a line under your numbers.

H T U

2 3 4

1 4 3

_____

then you solve 4-3= and put the answer under the line in unit column.

H T U

2-1 3+1 4

1 4 3

_________

o 9 1

Exchange 2 1 for 3 and answer the question.

finally solve 1-1.

Answer is 91.

a.234-143

1. first you have to write thousands, hundreds, tens and units in each box in a row.

th h t u

2.next you write the number you had under the thousands,hundreds,tens and units colmn.

th h t u

2 3 4