EXERCISES.

2. Add together 45.3+4.6+148.83+.6+4625+.3.

3. Add together 6.4+23.06+.3+.27545+.83+7.8.

4. Add together 12++33+41,,+15}+7{+69}+5, after reducing the fractions to decimals.

5. Add together £6 10s. 8d.+ £1 3s. 6d.+£17 13s. 4d.+ £1 10s.+£3 11s. 5d. +£10 17s. 34d. +£33 12s. 24d. after reducing the inferior denominations to the decimal of a £.

6. Add together £7 6s. 8d.+ £3 3s. 4d.+£9 1s. 8d.+ £2 16s. 8d.+ £32 12s. 7 d. decimally.

7. Add together 3 cwt. 1qr. 93 lb.+5 cwt. 12 lb. +3 qrs. 93 lb.47 cwt. 3 qrs. 7 lb. decimally.

8. Add together 3 oz. 5 dwt. 8 grs. +9 oz. 16 grs. + 10 oz. 3 dwt.+7 oz. 8 dwt. 6 gr. troy, decimally.

CASE III.

When compound repetends are given.

RULE.

Make the circulates similar and conterminous, as directed at page 82, and, in adding the right hand column, include the carriage that would have arisen, had the repetends been extended farther.

EXAMPLE.

Add together 79.875+831.813+915.7+16.525+79.54+

58.6+399.15+17.1115+53.148+932.8125+87.İ90476.

97.875

831.8138138138

915.7777777779

16.525

79.5454545454

58.6666666666

399.1515151515

17.1115555555

53.1481481481

932.8125

87.1904761904

3471.6179078494

EXERCISES.

33

2. Add together 89+42+56 +61 and +15, after the fractions are reduced to decimals.

3. Add together .5+.25+17.47+9.651, and 67.345.

4. Add together 2 cwt. 3 qrs. 7 lb. +9 cwt. 2 qrs. 16 lb. + 15 cwt. 1 qr.+2 qrs. 14 lb. +3 cwt. 1 qr. 8 lb.+2 cwt. 16 lb.+ 7 cwt. 3 qrs.+1 qr. 14 lb.+5 cwt. 2 qrs. 7 lb.+16 lb.

5. Add together 3 years, 123 days+2 years, 97 days+23 years, 283 days +11 years, 33 days; and 1 year, 212 days, allowing 365 days to the year.

SUBTRACTION OF
DECIMALS.

RULE.

Write the decimals under each other, according to the value of their places, as directed in Addition, and subtract as in integers; observing to place the decimal point, in the remainder, directly under the other points.

5. From 37.825 subtract .95.

6. From .081545 subtract .0787.

7. From £81 12s. 6d. subtract £37 9s. 14d.

8. From 3 cwt. 3 qrs. 7 lb. subtract 2 cwt. 3 qrs. 21 lb.

CASE II.

When repetends are given.

RULE.

Extend the repetends, as in Addition, and borrow from 9, at the right hand place, if the subtrahend exceed the minuend in that place*.

EXAMPLE I.

From 21.453 subtract 13.72.

21.453453

13.727272

7.726180 Remainder.

EXAMPLE II.

From 5 cwt. 2 qrs. 25 lb. subtract 3 cwt. 3 qrs. 17 lb.

cwt. qr. lb.

5. 2.25

= 5.7232142857

S. 3.17 =

9.9017857142

1.82142857 Remainder.

* Or convert the repetends into vulgar fractions, and then subtract

them.

9. From £91 18s. 14d. subtract £55 4s. 114d. decimally. 10. From 9 cwt. 1 qr. 13 lb. subtract 7 cwt. 3 qrs. 12 lb.

MULTIPLICATION OF
DECIMALS.

RULE.

Place the right hand figure of the multiplier under the right hand figure of the multiplicand, and multiply, as in whole numbers; then point off as many decimal places, from the right hand of the product, as there are in both factors: if there are fewer figures in the product than in both factors, supply the defect, by adding ciphers to the left hand.