Multiply by ten and add one of the number.
7 x 11 = 70 + 7
23 x 11 = 230 + 23 = 253.
11,011 is how you write eleven thousand eleven
To multiply 6 times 198 mentally, you can break down 198 into 200 - 2. Then, use the distributive property: 6 × 198 = 6 × (200 - 2) = (6 × 200) - (6 × 2) = 1200 - 12 = 1188. This approach simplifies the calculation by using easier numbers to multiply.
Only one and eleven. Eleven is a prime number. Prime numbers are divisible by one and themselves only.
(-15) x 4 = -60 -15 + 4 = -11 ~Jason
Eleven hundred dollars is written in numbers as $1,100.
4 and 7
11,011 is how you write eleven thousand eleven
You can do lattice, or do it mentally
Only one and eleven. Eleven is a prime number. Prime numbers are divisible by one and themselves only.
(-15) x 4 = -60 -15 + 4 = -11 ~Jason
proliferate
When you multiply numbers, you get their product.
They are: 11,000+1,100+11 = 12,111
The patterns and properties to compute mentally 120 times 30 is the numbers 12 and 3 plus the two 0. Multiply 12 by 3 (36) and add the two 0 (3600).
easy to divide mentally
Compatible numbers can easily be divided mentally.
benchmark numbers