Add & Subtract Patterns

Daniel Math Academy · Grade 4 Math

Add & Subtract Patterns

Skill X.1 · Patterns · ★★☆ Medium · Quarter 1

Name

 

Date

 

Score/ 16

Scan for answers

Find the rule and fill in the missing numbers.

1. 1
   $13,25,\boxed{},\boxed{},61,73$
2. 2
   $20,30,40,\boxed{},60,\boxed{}$
3. 3
   $38,32,\boxed{},20,14,\boxed{}$
4. 4
   $17,22,27,\boxed{},37,\boxed{}$
5. 5
   $15,26,\boxed{},\boxed{},59,70$
6. 6
   $99,88,\boxed{},66,\boxed{},44$
7. 7
   $26,22,18,\boxed{},10,\boxed{}$
8. 8
   $1,3,5,7,\boxed{},\boxed{}$
9. 9
   $46,51,\boxed{},61,\boxed{},71$
10. 10
    $75,63,51,39,\boxed{},\boxed{}$
11. 11
    $33,43,53,\boxed{},\boxed{},83$
12. 12
    $30,25,20,\boxed{},\boxed{},5$
13. 13
    $79,67,55,43,\boxed{},\boxed{}$
14. 14
    $84,75,66,57,\boxed{},\boxed{}$
15. 15
    $41,51,61,71,\boxed{},\boxed{}$
16. 16
    $37,30,\boxed{},16,9,\boxed{}$

Daniel Math Academy · Grade 4 Math

Answer Key

X.1 Add & Subtract Patterns · ★★☆ Medium

1. 1$37,49$ (add 12)
2. 2$50,70$ (add 10)
3. 3$26,8$ (subtract 6)
4. 4$32,42$ (add 5)
5. 5$37,48$ (add 11)
6. 6$77,55$ (subtract 11)
7. 7$14,6$ (subtract 4)
8. 8$9,11$ (add 2)
9. 9$56,66$ (add 5)
10. 10$27,15$ (subtract 12)
11. 11$63,73$ (add 10)
12. 12$15,10$ (subtract 5)
13. 13$31,19$ (subtract 12)
14. 14$48,39$ (subtract 9)
15. 15$81,91$ (add 10)
16. 16$23,2$ (subtract 7)