abacus
(noun)
/ˈæbəkəs/
Giải nghĩa:
A tool used for making calculations, with rods and movable beads
A tool used for making calculations, with rods and movable beads
Ví dụ:
In ancient times, merchants used an abacus to add and subtract numbers.
In ancient times, merchants used an abacus to add and subtract numbers.
abacus
(noun)
/ˈæbəkəs/
Giải nghĩa:
The topmost member of a column (in architecture), serving as a table for the capital.
The topmost member of a column (in architecture), serving as a table for the capital.
Ví dụ:
The abacus of the Doric order is almost square.
The abacus of the Doric order is almost square.
Cách sử dụng
An abacus is a tool used for counting and doing basic math. It is made up of beads or stones that slide on rods or wires. Abacuses have been used for centuries in many different countries, especially in Asia. They are helpful for people who do not have access to calculators or for those who prefer a physical tool to help them visualize math problems. You can find abacuses at some toy stores or online, but they are not commonly used in modern classrooms.
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