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  1. Home
  2. 11+
  3. 11-Plus Maths
  4. Addition and Subtraction 3 (Very Easy)
Two students doing advanced maths on a blackboard
If you want a career involving maths, then you'd better master addition and subtraction.

Addition and Subtraction 3 (Very Easy)

Addition and subtraction are the simplest part of maths – after learning to count that is! You may be feeling very confident in your ability to do them, but you can never get enough practice for your Eleven Plus exams.

Now you have made it to the third quiz in our Very Easy section on addition and subtraction. If you have already played the previous ones, then this quiz will be very simple for you. If you haven’t, then I do suggest you go back and visit them first.

Simple they may be, but addition and subtraction can fool the unready. If nothing else, this quiz will teach you to take your time and read each question thoroughly before you choose your answer. That is a vital lesson for anyone about to take a test.

1.
56 + 17 - 12 + 3 - 5 = ?
57
58
59
60
56 + 17 - 12 + 3 - 5 = (50 + 10 - 10) + (6 + 7 + 3 - 2 - 5) = 50 + 9 = 59
2.
54 + 19 + 3 - 14 = ?
62
63
64
65
54 + 19 + 3 - 14 = (50 + 10 - 10) + (4 + 9 + 3 - 4) = 50 + 12 = 62
A quick way to add 19 is to add 20 then subtract 1
3.
36 + 0 + 17 - 0 - 6 = ?
45
46
47
48
36 + 0 + 17 - 0 - 6 = (30 + 10) + (7) = 40 + 7.
Remember, zeros are worth nothing in addition and subtraction! You can also ignore the sixes because one is to be added and the other taken away
4.
23 + 18 - 14 + 6 = ?
30
31
32
33
23 + 18 - 14 + 6 = (20 + 10 - 10) + (3 + 8 + 6 - 4) = 20 + 13 = 33
5.
37 - 22 + 13 = ?
26
28
30
32
37 - 22 + 13 = (30 + 10 - 20) + (7 + 3 - 2) = 20 + 8 = 28
6.
27 - 18 = ?
8
9
11
12
You might have done this one in your head.
27 - 18 = (20 - 10) + (7 - 8) = 10 - 1 = 9
If you are adding -1 then you are simply subtracting 1
7.
31 + 7 - 14 = ?
24
26
44
52
TIP: With numbers less than 100, add the tens first and then add the units. 31 + 7 - 14 = (30 - 10) + (1 + 7 - 4) = 20 + 4 = 24
8.
6 + 3 + 4 + 8 + 7 + 7 + 2 = ?
36
37
38
39
6 + 3 + 4 + 8 + 7 + 7 + 2 = (6 + 4) + (7 + 3) + (8 + 2) + 7 = 37. Try to group your numbers in lots of ten
9.
16 + 16 + 16 = ?
32
40
48
56
16 + 16 + 16 = (10 + 10 + 10) + (6 + 6 + 6) = 30 + 18 = 48. Obviously, if you know that 16 × 3 = 48 (not many of us know our 16 times table), you won't follow this procedure. Always BE ON THE LOOKOUT for short cuts
10.
19 + 15 - 19 + 3 = ?
12
14
16
18
19 + 15 - 19 + 3 = (15 + 3) = 18
Cross out identical pairs of numbers that differ only in sign, e.g. +19 -19 = 0. Don't waste your time adding them to your final calculations
Author:  Frank Evans
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