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2146

ARITHMETIC

A help to accuracy.

32+17+77+ 8+27+73+80+64+18= 47+31+43+32+78+47+ 7+72+92= 8+92+ 1+41+19+69+51+87+ 5= 19+67+ 5+ 9+35+49+93+44+14= 67+13+54+ 6+62+17+67+31+30= 98+71+30+80+30+ 9+13+47+75= 27+10+97+33+73+16+81+39+62= 80+ 9+83+42+17+ 8+63+33+27= 63+83+17+87+24+37+ 5+64+82=

Add the above by columns and by lines.

Prove by comparing the sum total of the columns with the sum total of the lines.

BXEECISE 1.

Sales of a department store for the week ending September 30, 1911.

Days. Dry Goods. Boots and Shoes. Furniture. Kitchen Utensils. Groceries. Total.

Monday ....... $89.53	$40.75	$25.65	$41.58	$27.35

Tuesday. .....	91.40	19.60	80.75	38.15	21.17

Wednesday. . . .	53.35	39.10	63.48	52.19	33.41

Thursday ..... 65.20	24.70	15.90	23.63	19.05

Friday ........ 21.14	20.50	31.80	18.77	15.46

Saturday ...... 93.27	61.90	26.50	25.54	54.93

Total .......

Copy and complete the above statement. Prove by adding the vertical and horizontal totals.

EXERCISE 2.

Add vertically and horizontally the following statement of four weeks' cash receipts, February, 1909:

Monday. Tuesday. Wednesday. Thursday. Friday. Saturday. Total.

1st ..... $1068.17	$ 876.79	$ 729.17	$ 297.16	$  98.09	$1119.44

2nd.... 987.26	749.02	813.65	361.19	407.63	1506.38

3rd. . . .	995.35	936.95	657.98	416.41	336.41	1324.75

4th.... Feb. 22 1458.18	999.91	397.17	501.28	1207.67	. -

Total..