109?
609.
5,200
You can add 289 and 7 together without estimating. you can add 2, 8, 9 and 7 together without estimating. If you have to, 290 and 7 = 297.
The product is 10,404
0.0242
300 x 7 = 2100
289 x 7 = 2023.
17 x 17 = 289
300 and 10
can you tell the right thing
51 multiplied by 289 is 14,739.
17 x 17 = 289
609.
5,200
You can add 289 and 7 together without estimating. you can add 2, 8, 9 and 7 together without estimating. If you have to, 290 and 7 = 297.
The product is 10,404
7x87 is about 7x90, which equals 630