# Mental arithmetic

## byJohn William Hopkins

### Paperback | May 10, 2012

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1903 Excerpt: ...ch.? 18. How many links are in 87.75 ch.? 19. How many links are in 115.18 ch.? 20. How many links are in 1 mi.? No. 61 SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet 30 square yards 160 square rods 640 acres 1 square mile 36 sections Reduce: 1. 2 A. to square rods. 11. 3-J A. to square rods. 2. 5 A. to square rods. 12. 4 A. to square rods. 3. 9 A. to square rods. 13. f A. to square rods. 4. 12 A. to square rods. 14. A. to square rods. 5. 15 A. to square rods. 15..7 A. to square rods. 6. 1J A. to square rods. 16..9 A. to square rods. 7. 2J A. to square rods. 17..16\$ A. to square rods. 8. 3J A. to square rods. 18..83 A. to square rods. 9. 5J A. to square rods. 19. l A. to square rods. 10. 1 A. to square rods. 20. 2 A. to square rods. 21. 2\$ sq. yd. to square feet. 22. sq. yd. to square feet. 23. 8 sq. yd. to square feet. 24. 4 sq. yd. to square feet. 25. 11 sq. yd. to square feet. 26. 5 sq. rd. to square yards. 27. 10 sq. rd. to square yards. 28. 12 sq. rd. to square yards. 29. 16 sq. rd. to square yards. 30. 160 sq. rd. to square yards. How many square yards are in 1 A.? How many square yards are in f A.? How many square yards are in.3 A.? 1. 2. 3. 4. How many square yards are in.9 A.? 5. How many square yards are in A.? 6. How many square yards are in A.? 7. What fraction of 1 A. is 1,210 sq. yd.? 8. What fraction of 1 A. is 968 sq. yd.? 9. What fraction of 1 A. is 484 sq. yd.? 10. What fraction of 1 A. is 1,320 sq. yd.? 11. What fraction of 1 A. is 2,200 sq. yd.? 12. What fraction of 1 A. is 3,300 sq. yd.? 13. What fraction of 1 A. is 32 sq. rd.? 14. What fraction of 1 A. is 53£ sq. rd.? No. 62 AREAS OF RECTANGLES 1. A field is 80 yd. long and 80 yd. wide. How many acres are in the field? Solution. 1 sq. yd. x 80 x...

### Details & Specs

Title:Mental arithmeticFormat:PaperbackDimensions:26 pages, 9.69 × 7.44 × 0.05 inPublished:May 10, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217235514

ISBN - 13:9780217235518

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