How many days are 1 week and 4 days? 1 week and 5 days? 1 week and 6 days? 2 weeks? John has 9 cents, and Mary 4 cents. have both? How many are 9 and 4?

How many

4 and 9? If one lamp is worth 6 dollars, and another 5 dollars, how much are both worth?

If there are 8 boys in one class, and 5 in another, how many are there in both classes?

If there are 6 boys in one class, and 7 in another, how many are there in both classes?

A farmer sold 6 sheep to one man, and 8 to another. How many sheep did he sell?

A farmer has 9 cows in one pasture, and 5 in another. How many cows has he in the two pastures? How many are 9 and 5? 5 and 9?

Tom has two hens, one white, and the other black. The white hen has 9 chickens, and the black hen has 8 chickens. How many chickens have both hens? How many are 9 and 8? 8 and 9? James saw 9 crows on the ground, and 7 more flying about. How many crows did he see?

There are 8 blocks in one pile, and 8 in another pile. How many blocks are there in both piles?

There were 9 chickens roosting on one pole, and 6 on another pole. How many chickens were roosting on both poles? How many are 9 and 6?

If Harry paid 8 cents for his block of paper, and Ernest paid 7 cents for his, how many cents did the two blocks cost?

NOTE. In Subtraction, the pupils may use the knowledge acquired in Addition. Thus, if 8 is to be subtracted from 15, the answer sought is obtained by discovering the number that must be added to 8 to make 15. But it is better to keep Subtraction distinct from Addition, and at this stage to take two steps, just as we did in Addition.

Suppose we are required to take 8 from 15. Let one of the children put 10 nails in the top row of holes in the counting-board, and 5 in the next row below. We now ask the following questions: How many nails must we take away to leave 10? How many more than 5 are we required to take away? And 3 nails from 10 nails leave? Then 15810 − 3 = 7.

If you pay 17 dollars for a table, and 8 dollars for a chair, how many dollars more do you pay for the table than for the chair?

John has 16 marbles, and James has 9. How many more has John than James?

Take 1 week from 14 days. How many days are left? How many weeks are left?

I have 17 miles to walk. After I have walked 9 miles, how many more have I to walk?

A milkman has 16 cows. If he sells 7, how many will be left?

A farmer had 16 turkeys, but a fox carried off 8 of them. How many were left for the farmer?

Alice has 15 chickens. If 6 are black, and the rest are white, how many are white?

If Ernest had 9 marbles more, he would have 15. How many marbles has he?

The first train in the morning had 7 cars, and the second train had 15 cars. How many more cars did the second train have than the first train?

Mary picked 15 quarts of blueberries, and George picked 8 quarts. How many more quarts did Mary pick than George?

George caught 14 trout, and his brother caught 8 trout. How many more did George catch than his brother?

Henry had 14 cents, but spent 6 cents for lemons. How many cents had he left?

Miriam is 14 years old. How old was she 7 years ago? 9 years ago?

Lucy's father and mother together gave her 14 cents. Her father gave her 9 cents. How many cents did her mother give her?

There were 14 rolls on the table before break

fast, and only 5 after breakfast.

were eaten at breakfast?

How

How many rolls

Frank had 13 cents. He had one five-cent piece, and the rest one-cent pieces. How many one-cent pieces did he have?

Mary's mother had 13 eggs. She used 4 for a pudding. How many were left ?

How many are 14 minus 6? 15 minus 8?