up to twelve.
Two and two are four; four and two are six; six and two are eight, &c.
to twenty-four.
Three and three are six; six and three are nine; nine and three are twelve, &c.

to thirty-six.
_Subtraction_.
One from twelve leaves eleven; one from eleven leaves ten, &c.
Two from twenty-four leave twenty-two; two from twenty-two leave twenty, &c.
_Multiplication_.
Twice one are two; twice two are four, &c.

&c.

Three times three are nine, three times four are twelve, &c.

&c.
Twelve times two are twenty-four; eleven times two are twenty-two, &c.
&c.
Twelve times three are thirty-six; eleven times three are thirty-three, &c.