maths

http://www.tale.edu.au/tale/components/includes/trap.html?uid=aHR0cDovL3RsZi5kbHIuZGV0Lm5zdy5lZHUuYXUvbGVhcm5pbmdvYmplY3RzL0NvbnRlbnQvTDE5OTUvaW1zbWFuaWZlc3QueG1sLmh0bWxAVGFMRV8yMDA1X1RMRl9WMg==

Above link is for squirt volume stage 1

http://www.kidport.com/GradeK/Math/MathIndex.htm