Build a 5-region comparative chronology strip c. 600-1500 CE
Exercise
Difficulty 2
~2 min
hist.g3.s.ex_05
Year Arithmetic
Prompt
If the Mali Empire was founded in 1235 CE, how many years ago was that from today (2026)?
How it's presented
mode
card
prompt audio ID
audio.g3s.ex 05.stem
Answer criteria
type
numeric
value
791
tolerance
5
Hints
- Subtract 1235 from 2026.
- Use Math G3 Fall place-value to 10,000 to read both numbers.
Misconceptions to watch
- Subtracting in the wrong direction (1235 - 2026)
- Using wrong year for today
Used in lessons