Grade 4 - Progress in Mathematics

(Marvins-Underground-K-12) #1
Update your skills. See page 4.

Addition Strategies


2-2


Find the sum. Use addition strategies.


  1. 3 2. 5 3. 8 4. 6 5. 5 6. 8
     4  6  7  7  4  8

  2. 9 8. 7 9. 4 10. 9 11. 3 12. 9
     5  9  9  9  9  2

  3. 3  2 14. 4  4 15. 8  9 16. 9  6


1 more than 6  (^6) 1 less than 7  7
1 less than 10  4
10  5  15 12 ^3 ^2 ^17
Tyrone and Maria use doubles to find 6 7.
doubles
Tyrone thinks: 6  6  12 Maria thinks: 7  7  14
6  7  13 6  7  13
James uses 10 to find 9 4.
James thinks: 10  4  14
So, 9  4 13.
Tania looks for sums of 10 and doubles
when she adds more than two numbers.
2 6
5 10 3 12
 8 6
15  2
17
3.0
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