2. Write your numbers in
the right place!!
• Put your numbers underneath
each other.
HTU
135
+ 42
• Remember your 100s, 10s and
units!!
3. Always start with
the units!
• Start with the smallest
numbers. (UNITS)
135
+ 42
7 (5 + 2)
• Work from right to left.
4. Next go on to add
the tens!
• Put the tens underneath the
units.
135
+ 42
7 (5 +2)
70 (30 + 40)
• DON’T FORGET THAT YOU ARE
ADDING 10S NOT UNITS!
5. Finally add your 100s
and total it all up!!
135
+ 42
7 (5 + 2)
70 ( 30 + 40)
100 ( 100 + 0)
177
6. So, stick with these
and you’ll be fine!!
• Put the numbers in the right
place.
• Always start with the units.
• Next go on to add the 10s.
• Don’t forget that you’re adding
10s now!
• Then add the 100s and total it
all up!
7. So, stick with these
and you’ll be fine!!
• Put the numbers in the right
place.
• Always start with the units.
• Next go on to add the 10s.
• Don’t forget that you’re adding
10s now!
• Then add the 100s and total it
all up!