198 = (200 - 2) so use 6*200 - 6*2
6 x 200 - 10 - 2
Ooop
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.
ÃŒn that case you can multiply one of the addends, times the number of addends.
Multiply by is the usual form. Multiply 3 by 4 to get 12. If there are several numbers being multiplied then multiply .... together may be used... multiply 3, 4 and 5 together to get 60.
It means to multiply by one-thousandth (0.001).
Ooop
Most people who multiply mentally are using some form of the distributive property. If you wanted to do something like 47 x 5 in your head, that's (40 x 5) + (7 x 5) = 200 + 35 = 235
The exponent shows how many times the base is used as a factor.
Do the 2 x 50 first. Get 100. Multiply that by 14.
Multiplicand times multiplier equals product
For a room that is a rectangle, multiply length times width.
the formula to find the volume for anything is to multiply length times width times height.
The term 'mentally' can simply be defined as of or relating to an individuals brain or mind. The word mentally is used in many different phrases just as 'mentally ill'.
It is the coefficient of the variable as for example 5n means 5 times n
In order to divide two fractions, multiply the first times the reciprocal of the second.
An exponent is used to indicate that a number is multiplied by itself a specified number of times. For example, to multiply 4 by itself 9 times, you would write 49.
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.