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小数减法复习 = ulang kaji tolak perpuluhan 两个数的小数位数不同，先在被减数后面补 0，对齐小数点。从百分位开始减，上面的数字比下面的小，就要向左边借 1，借了以后左边那一位要少 1；可能要连续借两次。 例子：5.2 − 1.35 = 5.20 − 1.35 = 3.85。 注意：不能在每一位都用“大的减小的”，上面不够减一定要借位。

review subtracting decimals = ulang kaji tolak perpuluhan The numbers have different decimal places, so put a zero after the first number and line up the points. Subtract from the hundredths; when the top digit is smaller, borrow 1 from the left, which makes that place 1 less. You may need to borrow twice. Example: 5.2 − 1.35 = 5.20 − 1.35 = 3.85. Watch out: do not take the smaller digit from the bigger one in each place; borrow when the top digit is too small.

乘十 = darab sepuluh 乘以 10，每个数字都变大十倍，往左移一位，看起来就像小数点往右移一格。乘 100 移两格，乘 1 000 移三格。移完后个位前面的 0 可以不写。 例子：0.58 × 10 = 5.8；0.58 × 100 = 58。 注意：只在小数末尾加 0，数值没有改变；乘 10 只移一格，不要移两格。

multiplying by ten = darab sepuluh Times 10 makes every digit ten times bigger, moving one place left, which looks like the point moving one place right. Times 100 moves it two places and times 1 000 three places. A 0 before the ones can then be dropped. Example: 0.58 × 10 = 5.8; 0.58 × 100 = 58. Watch out: a zero at the end of a decimal does not change it, and × 10 moves only one place.

除法中的 0 = sifar dalam bahagi 长除法从左边开始，每一位都要在商里写一个数字。某一位不够除时，商的这一位写 0，再把这一位和下一位合起来继续除。商的小数点对齐被除数的小数点。 例子：6.12 ÷ 3 → 6 ÷ 3 = 2，1 不够除写 0，12 ÷ 3 = 4 → 2.04。 注意：不够除时写的 0 不能漏掉，漏了以后面的数字都会放错位置。

zero in division = sifar dalam bahagi Long division goes from the left, and every place gives one digit in the quotient. When a digit is too small to divide, write 0 in that place, then put it together with the next digit and carry on. Line up the point with the point above. Example: 6.12 ÷ 3: 6 ÷ 3 = 2, 1 is too small so write 0, 12 ÷ 3 = 4, giving 2.04. Watch out: do not leave out that 0, or every later digit lands in the wrong place.