Multi-operator BODMAS expressions with signs, from 1-digit to 4-digit mastery. 30 progressive levels.
Why this matters
Real problems rarely use one operation. BODMAS keeps longer expressions unambiguous.
Levels Cleared
0%
Group 1
Count Down
Score 100 in 57s
1d +/- (basic)
Reach Target
Reach 150 pts in 58s
1d +/- (with negatives)
Last Problems
Last for 18 problems
1d mul/div (basic)
Last Time
Last for 43 seconds
1d mul/div (with negatives)
Beat The Clock
Get 12 correct in 57s
1d mixed 3-term
Group 2
Count Down
Score 115 in 54s
1d mixed 3-term (neg)
Reach Target
Reach 173 pts in 56s
1d+2d +/- (basic)
Last Problems
Last for 21 problems
1d+2d +/- (neg)
Last Time
Last for 41 seconds
1d x teen mul/div (neg)
Beat The Clock
Get 14 correct in 54s
1d x teen mul/div (mastery)
Group 3
Count Down
Score 130 in 51s
Mixed-digit 3-term
Reach Target
Reach 195 pts in 54s
Mixed-digit 3-term (neg)
Last Problems
Last for 24 problems
2d +/- (basic)
Last Time
Last for 39 seconds
2d +/- (with negatives)
Beat The Clock
Get 16 correct in 51s
Teen mul/div (basic)
Group 4
Count Down
Score 145 in 48s
Teen mul/div (neg)
Reach Target
Reach 218 pts in 52s
2d mixed 3-term
Last Problems
Last for 27 problems
2d mixed 3-term (neg)
Last Time
Last for 37 seconds
3d +/- (basic)
Beat The Clock
Get 18 correct in 48s
3d +/- (with negatives)
Group 5
Count Down
Score 160 in 45s
2d mul/div (basic)
Reach Target
Reach 240 pts in 50s
2d mul/div (with negatives)
Last Problems
Last for 30 problems
2d+3d mixed 3-term
Last Time
Last for 35 seconds
2d+3d mixed 3-term (neg)
Beat The Clock
Get 20 correct in 45s
4d +/- (basic)
Group 6
Count Down
Score 175 in 42s
4d +/- (with negatives)
Reach Target
Reach 263 pts in 48s
3d mixed 3-term
Last Problems
Last for 33 problems
3d mixed 3-term (neg)
Last Time
Last for 33 seconds
4d mixed 3-term (mastery)
Beat The Clock
Get 22 correct in 42s
4d mixed 3-term (neg, mastery)