Subtraction & Difference( Week 27 Practice)
1. There are 16 kids in a sport camp. There are 12 bikes. How many more bikes will be needed in order to make every kid have a bike? 2. A mother hen is hatching a total of 13 eggs. 11 chicks get out of eggs after twenty days. How many more are expected? 3. 6 dogs sat around Edward and waited for him to feed them. After Edward fed 4 of them, how many dogs were left to be fed? 4. A flock of 19 birds are resting on 3 wires. 5 birds sit on the first wire. 4 birds sit on the third wire. How many birds sit on the middle wire? 5. Jennifer's heartbeat is 70 per minute, and her dad's heartbeat is 85 per minute. How many beats per minute is Jennifer's heart beat less than her dad's?