How does a human do arithmetic calculation as fast as a calculator?
Use a tech called Mental abacus. When a person reads the numbers, he or she will mentally visualize an abacus and do the calculation by moving the beads in the abacus. The calculation can be done in a great speed.
<START_INST>How does a human do arithmetic calculation as fast as a calculator?<END_INST><START_CTX><END_CTX><START_A>Use a tech called Mental abacus. When a person reads the numbers, he or she will mentally visualize an abacus and do the calculation by moving the beads in the abacus. The calculation can be done in a great speed.<END_A>