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Numbers
| 10, 20 ... | Numbers are used for counting and can be used to describe quantity. Please click the numbers below to see and hear numbers in English. |
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Addition |
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| 30 | + | 20 | = | 50 |
| Thirty | plus | Twenty | equals | Fifty |
| 10 | + | 60 | = | 70 |
Ten |
plus | Sixty | equals | Seventy |
| Subtraction – taking numbers away from another: |
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| 70 | - | 30 | = | 40 |
Seventy |
minus | Thirty | equals | Forty |
| 90 | - | 30 | = | 60 |
| Ninety | minus | Thirty | equals | Sixty |
Word problems
At a cinema there were one hundred (100) people waiting to buy tickets in line 1, and fifty (50) people waiting in line 2.
Question - How many people in total were waiting in line?
Answer - One hundred and fifty (one hundred plus fifty equals one hundred and fifty) or 100 + 50 = 150
Twenty five people left line 1 to join line 2.
Question - How many are in line 2 now?
Answer - Twenty five (fifty plus twenty five equals seventy five) or 50 + 25 = 75
Question - How many are in line 1 now?
Answer - One hundred and twenty five (one hundred minus twenty five equals seventy five) or 100 - 25 = 75