Basic Facts
5 X 2
10
50
5 X 10
5 x 9
45
87 X 6
522
Use extended facts to round, then estimate the answer.
77
X 8
80
X8
640
8 X 6
48
300
30 X 10
4 x 6
24
85 X 5
425
Use extended facts to round, then estimate the answer.
67
X 8
70
X8
560
7 X 9
63
80
8 X 10
6 x 9
54
84 X 5
420
Use extended facts to round, then estimate the answer.
98
X7
100
X7
700
9 X 8
72
4,000
400 X 10
7 x 7
49
163 X 8
1,308
Use extended facts to round, then estimate the answer.
305
X 5
300
X5
1,500
6 X 9
54
250
25 X 10
9x3
27
54 X 21
1,134
Use extended facts to round, then estimate the answer.
188
X 4
200
X4
800