Addition Progression

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78F, Soumya Gupta's Lucky Number 6

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Chapter 13: Mean, Median and Mode

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NUMBERS

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Standard Form

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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)