Problem Solving Adding and Subtraction

Leonard spends 60 minutes getting ready for school, 435 minutes at school, 45 minutes doing homework, and 120 minutes relaxing before bed. How many more minutes does Leonard spend at school than on homework?

• 480

• 410

• 390 minutes

• Not here

What is the combined length of ropes 1 and 2?

• 393 inches

• 403 inches

• 536 inches

• 646 inches

11+11

• 12

• 23

• 22

• 32

12+12

• 24

• 25

• 42

• 52

13+2

• 15

• 16

• 21

• 42

15+5

• 20

• 3

• 21

• 22

• 6

• 22

• 14

• 2

• 4+4+4=15

• 4+4+4=20

• 5+5+5=15

• 5+5+5+5=20

• 2

• 8

• 12

• 4

• 15

• 22

• 8

• 7