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Grade 1 - Addition And Subtraction To 100
total lessons: 10
| Nº | LESSONS title | type |
|---|---|---|
Adding Without Regrouping To 100 | ||
| 1 | Adding Ones to 2-Digit Numbers Within 100 Without Regrouping | |
| 2 | Adding Tens Within 100 | |
| 3 | Adding Tens to 2-Digit Numbers Within 100 | |
| 4 | Adding 2-Digit Numbers Within 100 Without Regrouping | |
Adding With Regrouping To 100 | ||
| 5 | Adding Ones to 2-Digit Numbers Within 100 with Regrouping | |
| 6 | Adding 2-Digit Numbers Within 100 with Regrouping | |
Subtracting Multiples Of 10 | ||
| 7 | Subtracting Tens Within 100 | |
| 8 | Subtracting Tens by Counting Backward | |
Mentally Adding And Subtracting 10 | ||
| 9 | Mentally Adding Tens to 2-Digit Numbers by First Adding the Tens | |
| 10 | Mentally Subtracting Tens from 2-Digit Numbers by First Subtracting the Tens | |