Number Pack 1 Flashcards
Place value, rational numbers, + - x /, BIDMAS
Units, tens, hundreds, thousands… what comes next
Ten thousands
What does the 4 represent in 34821
Four thousand 4000
What does the 4 represent in 4329230
Four million 4000000
Tens, units, tenths…. what comes next
Hundredths
If a digit moves from the hundreds column to the thousands, what has happened to the number?
Has been multiplied by 10
If a digit moves from the units column to the tenths, what has happened to the number?
Has been divided by 10
What technique is useful for ordering decimals like 0.34 , 0.3004, 0.340
Write zeroes on columns after the decimal points so all numbers have the same number of digits.
How should you add numbers like 31234.2345 and 239.42
Write as column addition. Line up the decimal points. Then write zeroes on columns after the decimal points so all numbers have the same number of digits.
How should you subtract numbers like 43.1 - 0.32
Write as column subtraction. Line up the decimal points. Write zeroes to make numbers the same digit length. Make sure to borrow if you cannot do top - bottom.
How should you attempt 6435 divided by 3
Use the “bus stop” method. Put 3 first, then 6453 under the bus stop.
Why is doing 400 x 30 first useful when calculating 432.1 x 31.2
It gives you a good estimate so you know if your answer is probably correct.
What does debit mean?
Money that has taken out of your account :(
What things might be debited from your account?
Bills, rent, loans
What does credit mean?
Money put in to your account :)
What is the main thing that gets credited to your account?
Wages (what you get paid for your job)
