Hard · Set 9

20 problems
1
131517?212325272931333537394143454749
Find the missing number on the number line (13 to 49, step 2) =
2
3031323334353637383940414243?45464748
Find the missing number on the number line (30 to 48, step 1) =
3
4953?616569737781858993
Find the missing number on the number line (49 to 93, step 4) =
4
202428?36404448525660
Find the missing number on the number line (20 to 63, step 4) =
5
2022242628303234363840424446485052545658?6264
Find the missing number on the number line (20 to 64, step 2) =
6
34?4043
Find the missing number on the number line (34 to 44, step 3) =
7
3133353739414345474951535557?61636567697173
Find the missing number on the number line (31 to 74, step 2) =
8
1719212325272931?353739414345474951535557
Find the missing number on the number line (17 to 58, step 2) =
9
4649525558?
Find the missing number on the number line (46 to 61, step 3) =
10
?3739414345
Find the missing number on the number line (35 to 46, step 2) =
11
4446485052545658606264?6870
Find the missing number on the number line (44 to 70, step 2) =
12
2829?313233343536373839
Find the missing number on the number line (28 to 39, step 1) =
13
394245485154576063666972757881?
Find the missing number on the number line (39 to 85, step 3) =
14
414243444546474849505152?54
Find the missing number on the number line (41 to 54, step 1) =
15
495255586164?70737679828588919497
Find the missing number on the number line (49 to 99, step 3) =
16
24252627?293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576
Find the missing number on the number line (24 to 76, step 1) =
17
353739?4345
Find the missing number on the number line (35 to 46, step 2) =
18
131415161718192021?2324252627282930313233343536373839404142434445464748
Find the missing number on the number line (13 to 48, step 1) =
19
22252831343740?464952555861
Find the missing number on the number line (22 to 63, step 3) =
20
?3842
Find the missing number on the number line (34 to 43, step 4) =
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