EXERCISES IN WRITTEN MULTIPLICATION

You should practice until you can find 8 such products in

MULTIPLYING BY ALIQUOT PARTS OF 100 225

MULTIPLYING BY ALIQUOT PARTS OF 100

An aliquot part of 100 is any number that is contained in 100 a whole number of times. Thus,

So 50, 25, 12, 333, and 163 are aliquot parts of 100.

From these we see that

To multiply by 50, multiply by 100 and divide by 2.
To multiply by 25, multiply by 100 and divide by 4.

State rules for multiplying by 121, 331, and 163.

Find by the aliquot part method:

2)8.75

4.875

13.625

To multiply by 1.5 is to add of the number

to itself.

PRACTICE FOR ACCURACY IN DIVISION 227

PRACTICE FOR ACCURACY IN DIVISION

Divide at sight, giving the remainders as fractions:

Check division by going over the work a second time to see if the

Divide and check, carrying remainders to the second decimal:

You should divide 8 such examples as the last twelve in 5 minutes.