(55 / 55) + (55 / 55) x 5 = 10
9 / 9 + 9 = 10.
All nines 9,999,999,999
2 numbers that make 10
To make 10 using five nines, you can divide one of the nines into two parts. For example: 9 + (9/9) + 9/9 + 9/9 + 9/9 = 10.
9=10
9000. 9000/9=1000 9000/10=900
10+30=70-30
9 + (99/99) = 10 or (9 / 9) + (9 - 9) + 9 = 1 + 0 + 9 = 10
10
Every ten there is a nine in the ones place, therefore there are 100 nines in the ones place.Every hundred there are 10 nines in the tens place, therefore add 10 * 10 nines. eg 90, 91, 92, 93, ... in the tens placeEvery thousand there are 100 nines in the hundreds place, therefore add 100 nines.Total is 300.
873 I just did this in my head remembering those times tables I learnt by rote decades ago. seven nines are 63, nine nines are 81 (or in this case nine nines by 10) that is : 810+63=873
A valid number sentence that is true: 3 + 7 = 10. A valid number sentence that is false: 7 + 9 = 17. A valid number sentence using a 'less than' symbol: 3 + 6 < 10.