Addition within 40 | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 8 Public

addition within 40 using different methods, no regrouping

Study Slideshow

Count on to add: 15 + 4

15 + 4 = 19

Count on to add: 23 + 5

23 + 5 = 28

Group into tens and ones to add: 31 + 4

31 + 4 = 35

Group into tens and ones to add: 20 + 15

20 + 15 = 35

Use a place value chart to add: 23 + 12

23 + 12 = 35

Use a place value chart to add: 16 + 12

16 + 12 = 28

Use a place value chart to add: 30 + 3

30 + 3 = 33

Use a place value chart to add: 23 + 16

23 + 16 = 39