0
well if you really don't know it's 72 i learn in the 4th grade.
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Judy
LaoDude, just use a calculator.
Learn your multiplication tables.
Here is the 8 times table. followed by the 9 times table.
1 x 8 = 8
2 x 8 = 16
3 x 8 = 24
4 x 8 = 32
5 x 8 = 40
6 x 8 = 48
7 x 8 = 56
8 x 8 = 64
9 x 8 = 72 ( Note for the question answer)
10 x 8 = 80
11 x 8 = 88
12 x 8 = 96
1 x 9 = 9
2 x 9 = 18
3 x 9 = 27
4 x 9 = 36
5 x 9 = 45
6 x 9 = 54
7 x 9 = 63
8 x 9 = 72 ( Note for the question answer)
9 x 9 = 81
10 x 9 = 90
11 x 9 = 99
12 x 9 = 108
NB Only in the 9 times table, if you add the digits of the answers they always add to '9'. e.g. 72 ; 7 + 2 = 9
Read & learn by heart all your multiplication tables. It will make your arithmetic much easier.
9
So this is a 3rd grqde question but you'll need some steps that are simpler
do you know your 5s and 3s, than that's good! 5 x 9 = 45 and 3 x 9 = 27. Last, you add them 45 + 27 = 60 + 12 = 72. It's 72!
If you haven’t memorised it in Grade 2, you could do 8 x 10 - 8. 72.
How many times does 9 go in to 80?
80 ÷ 9 = 8 remainder 8
7 times 8 times 9 equals what?
The product of 7*8*9 = 504
What are the multiples of 6 8 and 9?
72... 8 goes into 72, 9 times 9 goes into 72, 8 times and 6 goes into 72, 12 times
How many times does 8 in to 78?
8 goes into 78 nine times with a remainder of 6, which is the same as 9 3/4 times.
How many times does 9 go into 80?
9 goes into 80 8 times, with 8 left over.
