四年级三单元numbers.ppt
Unit3 Numbers,one 1 two 2 three 3 four 4 five 5 six 6 seven7 eight 8 nine 9 ten 10 eleven11 twelve 12,thirteen fourteen fifteen sixteen seventeen eighteen nineteen,twenty thirty forty fifty60 sixty70 seventy80 eighty90 ninety100 a hundred,thirteen-red forty-blue and yellow sixteen-green eighteen-yellow ninety-brown and orange sixty-green and red fifteen-pink fifty-pink and green thirty-red and blue fourteen-blue,Whats twenty plus twelve? Whats twenty minus twelve?,