28 ADDITION COMBINATIONS TO TWENTY Study the combinations with the answers. Study very care fully the difficult ones printed in heavy black figures. ORAL PROBLEMS 29 1. There were four boys playing in one lot, and seven boys playing in another. How many boys were playing in the two lots? 2. There were seven sparrows in one tree, and eight in another. How many sparrows were in the two trees? 3. Nine houses are on one side of a street, and six are on the other side. How many houses are on the street? 4. Henry gave seven apples to one boy, and six to another. How many apples did he give to the two boys? 5. John planted five rows of potatoes on one side of his garden, and eight rows on the other side. How many rows did he plant? 6. I bought eight gallons of gasoline yesterday, and six gallons today. How many gallons of gasoline did I buy? 7. George drove nine miles in the morning, and seven miles in the afternoon. How many miles did he drive? 8. An ice-cream dealer sold nine ice-cream cones during one hour, and eight ice-cream cones during the next hour. How many did he sell during the two hours? 9. At a doll party all the dolls were dressed in pink or blue. There were four dolls dressed in blue, and five dressed in pink. How many dolls were at the party? 10. A grocer bought five pails of candy from one man, and six pails from another man. How many pails of candy did he buy? What is the cost of: 11. A 5-cent pencil and a 5-cent ruler? 12. An 8-cent tablet and a 4-cent eraser? 13. A 7-cent pen and a 10-cent bottle of ink? 14. A 10-cent comb and a 6-cent cake of soap? |