Addition and subtraction | 1st Grade | Khan Academy
5.0
(3)
23 learners
What you'll learn
This course includes
- 1 hours of video
- Certificate of completion
- Access on mobile and TV
Course content
1 modules • 18 lessons • 1 hours of video
Addition and subtraction | 1st Grade | Khan Academy
18 lessons
• 1 hours
Addition and subtraction | 1st Grade | Khan Academy
18 lessons
• 1 hours
- Subtracting 14 - 6 | Addition and subtraction within 20 | Early Math | Khan Academy04:03
- Understanding place value when adding ones | Early Math | Khan Academy02:35
- Understanding place value while adding tens | Early Math | Khan Academy03:15
- Adding by getting to group of 10 first | Early Math | Khan Academy02:49
- Adding two-digit numbers without regrouping | Early Math | Khan Academy02:33
- Adding 2-digit numbers without regrouping 1 | Addition and subtraction | 1st grade | Khan Academy01:52
- Regrouping to add 1-digit number | Addition and subtraction | 1st grade | Khan Academy04:13
- Breaking apart 2-digit addition problems | Addition and subtraction | 1st grade | Khan Academy04:47
- Adding 1 vs. adding 10 | Addition and subtraction | 1st grade | Khan Academy02:16
- Relating addition and subtraction | Basic addition and subtraction | Early Math | Khan Academy02:05
- Adding 8 + 7 | Addition and subtraction within 20 | Early Math | Khan Academy03:19
- Exercising gorillas | Addition and subtraction within 20 | Early Math | Khan Academy05:31
- Adding 5 + 3 + 6 | Addition and subtraction within 20 | Early Math | Khan Academy02:37
- Adding 7 + 6 | Addition and subtraction within 20 | Early Math | Khan Academy03:53
- Sea monsters and superheroes | Addition and subtraction within 20 | Early Math | Khan Academy03:37
- Equal sign | Addition and subtraction within 20 | Early Math | Khan Academy04:55
- Comparison word problems | Addition and subtraction within 20 | Early Math | Khan Academy03:22
- Comparison word problems: roly-polies | Addition and subtraction | 1st grade | Khan Academy03:13
