Assuming you meant 6 x 198... Do a mental sum for 6 x 200 (1200) then subtract 6 x 2 (12) to give you 1188.
Ooop
198 = (200 - 2) so use 6*200 - 6*2
33 and 6
396
30% of 198= 30% * 198= 0.3 * 198= 59.4
Ooop
To multiply 6 times 198 mentally, you can break down 198 into smaller, more manageable parts. For instance, you can express it as ( 198 = 200 - 2 ). Then, rewrite the expression as ( 6 \times 198 = 6 \times (200 - 2) ), which simplifies to ( 6 \times 200 - 6 \times 2 ). This gives you ( 1200 - 12 = 1188 ), making it easier to calculate mentally.
198 = (200 - 2) so use 6*200 - 6*2
It is : 22 times 9 = 198
3.96 To find 2% of 198, multiply 198 by 2% in decimal form, or .02. 198 x .02 = 3.96
There are infinitely many pairs. An easy pair to remember is 1 and 198.
198
45 is the only one.
33 and 6
To convert from percent to a decimal, divide by 100. therefore 77% = .77 multiply by 198 = 152.46
Multiply per 1,000.
To convert 1.98 to percent multiply by 100: 1.98 × 100 = 198 %