Help- type 19 (k) questions
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Help- type 19 (k) questions
Can anyone help solve these:
27 (20) 11 16 (12) 8 6 (?) 18
9 (15) 45 25 (12) 50 16 (?) 32
12 (16) 3 28 (32) 7 4 (?) 1
Thanks
27 (20) 11 16 (12) 8 6 (?) 18
9 (15) 45 25 (12) 50 16 (?) 32
12 (16) 3 28 (32) 7 4 (?) 1
Thanks
Re: Help- type 19 (k) questions
Top one - not sure - could it be:
27 - 11 = 16 + 4 = 20
etc.
6 - 18 = -12 + 4 = -8 ??
12 divided by 3 = 4 Add 4 to 16
28 divided by 7 = 4 Add 4 to 28
4 divided by 1 =4 Add 4 to 4
27 - 11 = 16 + 4 = 20
etc.
6 - 18 = -12 + 4 = -8 ??
12 divided by 3 = 4 Add 4 to 16
28 divided by 7 = 4 Add 4 to 28
4 divided by 1 =4 Add 4 to 4
Re: Help- type 19 (k) questions
second one is 45 - 9 = 36 - 1 and halve it
etc.
etc.
Re: Help- type 19 (k) questions
The third one is
divide 1st number by 2nd then add the first number so
4/1 = 4 +4 = 8
divide 1st number by 2nd then add the first number so
4/1 = 4 +4 = 8
Re: Help- type 19 (k) questions
DD says number 2 is
divide second number by first and add 10
32/16 = 2 +10 = 12
divide second number by first and add 10
32/16 = 2 +10 = 12
Re: Help- type 19 (k) questions
Always keep to basic rules...
Middle number has been made using the numbers either side.
Same rule must apply for all 3 sets.
Sometimes 1 operation. Sometimes 2.
Second operation can be:
1] + - x / [divide sign!] the same number.
2] doubling/halving
3] + - x / [divide sign] the number on the left or right of the middle number.
Whilst teaching, I always say:
If the number in the middle is bigger than the 2 either side then your 1st operation is probably adding or multiplying.
If the number in the middle is smaller that at least one of the numbers either side, then your 1st operation is probably subtracting or dividing.
I always emphasise the word probably, because there are times when this rule will not work, they are not to panic, if it doesn't work, that’s fine, just try the other 2 operations.
27 (20) 11 16 (12) 8 6 (?) 18
Assuming the numbers in the 3rd bracket are the wrong way round 18 (?) 6 or the incorrect numbers given.
27 minus 11 = 16 add 4 = 20
16 minus 8 = 8 add 4 =12
18 minus 6 = 12 add 4 = 16
9 (15) 45 25 (12) 50 16 (?) 32
45 divided by 9 = 5 add 10 = 15
50 divided by 25 = 2 add 10 = 12
32 divided by 16 = 2 add 10 = 12
12 (16) 3 28 (32) 7 4 (?) 1
12 divided by 3 = 4 add the number on the left of the middle number = 16
28 divided by 7 = 4 add the number on the left of the middle number = 32
4 divided by 1 = 4 add the number on the left of the middle number = 8
Middle number has been made using the numbers either side.
Same rule must apply for all 3 sets.
Sometimes 1 operation. Sometimes 2.
Second operation can be:
1] + - x / [divide sign!] the same number.
2] doubling/halving
3] + - x / [divide sign] the number on the left or right of the middle number.
Whilst teaching, I always say:
If the number in the middle is bigger than the 2 either side then your 1st operation is probably adding or multiplying.
If the number in the middle is smaller that at least one of the numbers either side, then your 1st operation is probably subtracting or dividing.
I always emphasise the word probably, because there are times when this rule will not work, they are not to panic, if it doesn't work, that’s fine, just try the other 2 operations.
27 (20) 11 16 (12) 8 6 (?) 18
Assuming the numbers in the 3rd bracket are the wrong way round 18 (?) 6 or the incorrect numbers given.
27 minus 11 = 16 add 4 = 20
16 minus 8 = 8 add 4 =12
18 minus 6 = 12 add 4 = 16
9 (15) 45 25 (12) 50 16 (?) 32
45 divided by 9 = 5 add 10 = 15
50 divided by 25 = 2 add 10 = 12
32 divided by 16 = 2 add 10 = 12
12 (16) 3 28 (32) 7 4 (?) 1
12 divided by 3 = 4 add the number on the left of the middle number = 16
28 divided by 7 = 4 add the number on the left of the middle number = 32
4 divided by 1 = 4 add the number on the left of the middle number = 8
Re: Help- type 19 (k) questions
Thank you!! I can sleep tonight!
Re: Help- type 19 (k) questions
I am not sure whether I should start a new topic for this, but can you please help me with these?
( 13 [ 10 ] 3 )( 17 [ 21 ] 10 )( 20 [ ? ] 7 )
( 3 [ 10 ] 7 )( 9 [ 27 ] 3 ) ( 8 [ ? ] 8 )
Thanks and Regards
Lakshmi
( 13 [ 10 ] 3 )( 17 [ 21 ] 10 )( 20 [ ? ] 7 )
( 3 [ 10 ] 7 )( 9 [ 27 ] 3 ) ( 8 [ ? ] 8 )
Thanks and Regards
Lakshmi
Re: Help- type 19 (k) questions
No.1 Add both numbers together then subtract 6
20 + 7 -6 = 21
20 + 7 -6 = 21
Re: Help- type 19 (k) questions
That's wrong - it doesn't work on the last one.Minesatea wrote:No.1 Add both numbers together then subtract 6
20 + 7 -6 = 21