ADDITION AND SUBTRACTION. 113

How many ones are left? How many tens? How many
splints?



36 Two ones from 6 ones leaves ones. One ten from 3 tens

^'^ leaves tens. Two tens and 4 one

24 we subtract first — the ones or the tens?



^^ leaves tens. Two tens and 4 ones are . Which do



When 12 is subtracted from 36, what is the remainder?
Show me the squares that represent it.
Take 25 splints (2 tens and 5 ones.) Take away 13
splints (1 ten and 3 ones). How many ones remain? How
many tens? How many splints? 25 — 13 =

Draw squares to represent 25 — 10.
154.
Subtract:












13


16


26


34


45


24


27


30


2


4


14


14


12


12


15


10


37


44


56


63


58


76


69


75


14


12


24


21


33


25


36


50


86


93


77


68


84


50


95


98


41


21


34


58


62


30


70


23


80


72


97


48


59


76


81


99


60


52


60


18


21


41


31


44



114 6CHOOL ARITHMETIC.
23

^2 4 onea, 2 ones, aud 3 ones are ones.
14 1 ten, 4 tens, and 2 tens arc tens.
— The sum is tens an& ones, or.
