Adding Three Numbers and Missing Numbers - Worksheets, Questions and Revision

18 original exam-style questions - 4 pages of questions with a full mark scheme - free printable PDF.

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KS1 · Addition and Subtraction

KS1.M29 Adding Three Numbers and Missing Numbers

STA NC-KS1-MATHS-STA · Calculators not allowed · about 30 minutes
Name: _______________________________    Date: ____ / ____ / ______
Answer ALL questions. Show all your working.
1
Add the three numbers. 2 + 3 + 1 = ___
(1)
2
Add the three numbers. 4 + 5 + 2 = ___
(1)
3
There are 3 red cars, 2 blue cars and 4 green cars. How many cars are there altogether?
(1)
4
Work out 6 + 1 + 2 = ___
(1)
5
Add the three numbers. 7 + 2 + 1 = ___
(1)
6
Fill in the missing number. 5 + ___ + 2 = 10
(1)
7
Fill in the missing number. ___ + 4 + 4 = 11
(1)
8
Amy has 2 apples, Priya gives her 5 and Kwame gives her 2 more. How many apples now?
(1)
9
Work out 3 + 3 + 4 = ___
(1)
10
Fill in the missing number. 2 + 7 + ___ = 12
(1)
11
There are 6 birds, 2 more join and 5 more fly in. How many birds now?
(1)
12
Fill in the missing numbers. ___ + 5 + 4 = 12
(1)
13
Work out 5 + 5 + 5 = ___
(1)
14
Fill in the missing number. 4 + ___ + 6 = 13
(1)
15
Add the three numbers. 8 + 1 + 1 = ___
(1)
16
There are 7 pencils on the desk. Teacher puts 3 more and a child adds 2 more. How many pencils now?
(1)
17
Complete both missing numbers. a) 3 + ___ + 2 = 9 b) ___ + 4 + 3 = 10
(a)3 + ___ + 2 = 9(1)
(b)___ + 4 + 3 = 10(1)
18
Look at the number sentence. 6 + ___ + ___ = 14, where both missing boxes hold the same number.
Fill both boxes so the sentence is correct.
(first)6 + ___ + ___ = 14, where both boxes hold the same number (box 1)(1)
(second)6 + 4 + ___ = 14 (box 2)(1)
Mark scheme · KS1.M29 Adding Three Numbers and Missing Numbers

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15

Question 16

Question 17

Question 18