Addition within 100
Time
100
90 pigs and sheep
What if a farmer has 20 male pigs and 22 female pigs. There are 6 fewer pigs than sheep. How many pigs and sheep are there altogether?
100
12:30 pm
What is a children's variety program began at 11:40 am. It lasted 50 minutes. What time did the program end?
200
60
What if Amir caught 13 snails, 19 worms and 28 centipedes in his garden. How many animals did he catch in all?
300
85 buttons
What if Joan has 16 buttons. Paula has 7 more buttons than Joan. Paula has 23 fewer buttons than Clara. How many buttons do they have altogether?
400
42 passengers
What if on a bus, 27 passengers were seated and 8 passengers were standing. At the next bus stop, 17 people got off and 24 people got on. How many passengers are there on the bus now?
500
93 paper clips
What if after giving away 23 paper clips to Grace and 56 paper clips to Douglas, Martha had 14 paper clips left. How many paper clips did Martha have at first?