Parallel lines
平行線
Perpendicular lines
垂直線
Right angle
直角
Rectangles and squares
長方形與正方形
Oppsite side
對邊
Adjacent side
鄰邊
The four sides are equal in length
四邊相等
The opposite sides are equal in length
對邊相等
Parallelograms
平行四邊形
Quadrilateral
四邊形
Long division
長除式
Short division
短除式
Share equally
等分
Quotient
商
left over
剩下
Remainder
餘數
Left out
省去
Check the answer by multiplication
用乘法驗算
Divisor
除數
Dividend
被除數
Hours and minutes
時與分
Hour hand
時針
Minute hand
分針
Second hand
秒針
digital clock
數字鐘
stopwatch
秒錶
24 hours in a day
每天有24小時
60 minutes in an hour
每小時有60分
Telling the time
報時
Chinese abacuses
中式算盤
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