ROMAN NOTATION.-Ex. IV. Page 15.

1. VII; XI; XVIII; XIX; XXXV; LV; LIX; CXXVIII; CCCXXVII; DCCIX; MM or II; MDCCLXIV.

2. Eight, 8; twenty-nine, 29; one hundred and twenty-two, 122; one thousand five hundred and sixty-two, 1562; five thousand and two, 5002; one million one hundred thousand, 1100000.

SIMPLE MULTIPLICATION,

when the Multiplier is a number not larger than 12.

(25) 41411844. (26) 13125.

(15) 6240801.
(18) 59122215.
(21) 5258836.

(24) 57166500.

(27) Distance apart at end of 1st hour=23+4 or 27 m.

(28) 153; 6051.

(29) No. of lemons bought

9 hours 27 × 9 or 243 m.

= 28 × 12+ (19 × 12 + 5) + (33 × 12+9)
=336+228 +5+396+9=974;

.. lemons cost 974 pence;

No. of sound lemons=974-37-84-937-84=853,
... lemons sold for (853 × 2) or 1706 pence,
... gain=(1706-974) pence=732 pence.

(30) No. of plums = 29 × 12+ 24 × 9 + 37 × 12 +27
=348+216 +444 +27=1035.

SIMPLE MULTIPLICATION,

when the Multiplier is a number larger than 12.

(24) No. of mi. = (16 × 6 × 52) = (96 × 52) = 4992, No. of shillings earned=(6 × 52 × 2)=624.

(25) Each pauper costs £37 - £28= £9,

.. whole cost £(6078 × 9) = £54702.

=

(26) No. of elms in 37 yrs. = 56354 × 25+ 56354 × 2 × 12

=1408850+1352496

=2761346.

No. of elms in 100 yrs. = 56354 × 25+ 56354 × 50 + 56354 × 3 × 50

=1408850+2817700+8453100

=12679650.

SIMPLE DIVISION,

when the Divisor is a number not larger than 12.