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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

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What is a expression that can be used to multiply 6 times 198 mentally?

Ooop


What are the 2 ways to multiply?

You can do lattice, or do it mentally


What expression that can be used to multiply 6 times 198 mentally?

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.


How can the associative property of multiplication be used to compute 14 x 2 x 50 mentally?

Do the 2 x 50 first. Get 100. Multiply that by 14.


What is an expression that can be used to multiply 6 times 198 mentally?

To multiply 6 times 198 mentally, you can use the expression (6 \times (200 - 2)). This simplifies to (6 \times 200 - 6 \times 2), which equals (1200 - 12 = 1188). This method makes the calculation easier by breaking it down into simpler components.


How do you write an expression that can be used to multiply 6 times 198 mentally?

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.


How can you mentally multiply a decimal number by 100?

Move the decimal point two spaces to the right.


What is an exspession that can be used mentally to multiply 6 times 198?

198 = (200 - 2) so use 6*200 - 6*2


How do you mentally find the square of a number?

Multiply the number by itself: 2x2=4, 3x3=9 and so on.


Why expression could be used to multiply 6 and times 198 mentally?

To multiply 6 by 198 mentally, you can use the distributive property by breaking down 198 into simpler components, such as 200 and -2. You can then calculate 6 × 200, which equals 1200, and 6 × -2, which equals -12. Adding these results together (1200 - 12) gives you 1188, making it easier to arrive at the final answer without complex calculations.


How can you multiply numbers by eleven mentally?

Multiply by ten and add one of the number. 7 x 11 = 70 + 7 23 x 11 = 230 + 23 = 253.


How do you change 300m to cm?

You need to multiply 300m by 100cm since there are 100cm in a meter. You should be able to solve that mentally.