place value
value of the 7 in
3 267 209
1 000
on a number line going from -10 to 10, where would the 0 sit
halfway
5x(3+2)
25
III in english
3
2,_,8,16,_,64
2,4,8,16,32,64
doubling
XII in english
7
_,9,16,23,_,37
2,9,16,23,30,37
going up by 7
1,_,2,3,5,8,_,21
1,1,2,3,5,8,13,21