Question

the mental math to complete the table
78 rol sedmes Think 2010 103
100
90
80
20
3
SO
20
60
20
3 roll quarters Thinkers per 20 rolls 210 x 10
90
100
20
30
00
50
70
800
9.000
* 100
30
81 x 10



AYUDAAAAAAA :c

Answer 1

81×10 es esa amigo sacaste 10