Unit 1 of 15 · 3 skills
Working with Units
Convert between units and solve real-world problems using dimensional analysis.
Unit prize
Golden Ruler · finish all 3 skills
70 Bridgeysacross the unit
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“…what is easiest and most useful in arithmetic, such as men constantly require in cases of inheritance, legacies, partition, lawsuits, and trade, and in all their dealings with one another.