Categorías: Todo - counting - numbers - addition - multiples

por Amy Boljkovac hace 11 años

462

Addition Progression

The text provided outlines various strategies and examples for teaching and practicing addition with sums less than 100. It includes adding two-digit numbers, both with and without crossing into the next decade, and adding one-digit numbers to two-digit numbers.

Addition Progression

Followed By: Sums of Numbers Less Than 100

Adding any 2-digit number with any other 2-digit number with sums less than 100.

Ex: 34+58, 67+ 25

Adding a 2-digit teen number with any other 2-digit number

Ex: 36+15, 49+14

Adding a 2-digit and a 1-digit number

Ex: 74+9, 73+8, 54+7

Adding 2-digit numbers with sums below 100(not crossing over into the next decade)

Ex: 34+12, 48+11, 56+13

Partners to 100

Multiples of 10 (10+90, 70+30, etc)
2-digit numbers (11+89, 65+35, etc)

Adding a multiplie of 10 to a 2-digit number with a sum less than 100

Ex: 53+30, 24+70, 40+39

Adding multiples of 10 with sums less than 100

Ex: 50+30, 20+40

Adding 10 to any two digit number

Ex: 43+10, 10+57, 34+__=44

Adding 10 to any two digit number (multiple of 10)

Ex: 40+10, 30+10, 50+__=60.

Early Addition Progression (as laid out by the ASD-E Numeracy Team)

Counting on from multiples of 10

Ex: 20+6, 4+30, 20+__=24

Basic facts with sums less than 20

Ex: 7+8, 6+6

Basic facts with sums less than 10

Ex: 3+5, 4+3

Partners to 20

Ex: 17+3, 18+2

Working with 10

Partners to 10 (1+9, 2+8, 3+7, 4+6, 5+5, and reversals)
Counting on from 10 (10+1, 10+2, 10+3, etc.)

Working with 5

Partners to 5 (4+1, 3+2, 2+3, 1+4)
Counting on from 5 (5+1, 5+2, 5+3, 5+4, 5+5)