fraction
large numbers
Four operations
arithmetic laws
100
Read this fraction in English 2/3
two thirds
100
Say this number in English 230761
Two hunhundred and thirty thousand seven hundred and sixty -one
100
How do we say 减数 in English?
minuend
100
What arithmetic laws did we learn?
commutative, associative, distributive
200
How do we say 分子and分母in English?
numerator, denominator
200
How many periods does this number have? What are they? 1980076543
four periods. units, thousand, million, billion
200
How do we say 被除数，除数 in English?
dividend, divisor
200
What is commutative law for addtion?
In addition, if we swap the addends, the sum is not changed.
300
1/5 and 2/10 They are ___________ fractions
equivalent
300
Say this number in chinese. one million four hundred and twenty-one thousand six hundred and eighty –five
1421681 一百四十二万一千六百八十一万
300
In Western countries, for convenience in reading and writing numbers, orders are divided into groups of _______each and each group I called a period.
three
400
which one is greater? 3/7 or 3/8
3/7 is greater. Comparing fractions with the same numerator. The smaller the denominator is, the greater the value of the fractions is.
400
Round 1,903,879 to the nearest million.
2000000
400
If you have the sum of two numbers, and one of the addend is given, how do you find the other?
sum- addend 1=addend 2
500
6/8 and 3/12 Which one is greater? How do you compare?
6/8. We can change these two fractions into fractions with a common denominator. That is to say 3/4 and 1/4.
500
44580009 In this number, "5" is in the _______ place.
million
500
If the dividend, quotient and remainder are given, how do you find the divisor?
(dividend-remainder) / quotient
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