Facts & Annexing
8 x 3
18
Estimate: 23 x 4
23 --> 20 x 4 = 80
53 x 3
159
165 x 4
660
There are 9 baskets at the market with 5 onions in each basket. How many onions are there all together?
45
2 x 9 // 2 x 90
Estimate: 97 x 7
97 --> 100 x 7 = 700
62 x 7
434
203 x 7
1, 421
There are 7 racks in the gym with 15 rubber balls on each rack. How many rubber balls are there all together?
105 rubber balls
4 x 7 // 4 x 70 // 4 x 700
28 // 280 // 2800
Estimate: 82 x 8
82 --> 80 x 8 = 640
48 x 5
240
386 x 5
1, 930
Grant drew 3 flowers on each note card. If there were 28 note cards, how many flowers were there all together?
84 flowers
6 x 6 // 6 x 60 // 6 x 600
36 // 360 // 3600
Estimate: 286 x 6
286 --> 300 x 6 = 1,800
74 x 8
592
597 x 6
3, 582
Greg planted 4 petunias in each planter box. If there were 46 planter boxes, how many petunias were there all together?
184 petunias
0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
Estimate: 714 x 8
714 --> 700 x 8 = 5,600
87 x 9
783
849 x 8
6, 792
There are 248 filing cabinets in the office with 9 folders in each filing cabinet. How many folders are there all together?
2, 232 folders