subtract bridge 10 8 thurs.-gr.4
TRANSCRIPT
Mental Math Strategy:
Subtraction-
Bridge 10 -8Gr. 4
120 - 80
=
180 - 80 =
100 - 80
=
170 - 80 =
90 - 80 =
130 - 80 =
170 - 80 =
110 - 80 =
140 - 80 =
160 - 80
=
80 - 80 =
110 - 80 =
150 - 80 =
120 - 80 =
180 - 80 =
130 - 80 =
140 - 80 =
100 - 80 =
150 - 80 =
160 - 80 =
90 - 80 =
80 - 80 =
