Unit 9 – Addition and subtraction
Copy and complete. (a) 27 + 20 =
1
(c)
(b)
42 + 60 = 42 + 65 = 342 + 65 = 542 + 65 =
35 + 50 = 35 + 59 = 135 + 59 = 159 + 35 =
127 + 20 = 127 + 23 = 127 + 25 =
2 Which is the most likely answer to 542 + 95?
The most likely answer is
because ________________________
A ticket for the morning flight is $325. A ticket for the evening flight is $82 more. How much does a ticket for the evening flight cost? $
3
E
Work with a partner. Arrange the numbers in the puzzle so that the value in a circle is the total of the two squares that it joins.
35 638 379
608 314 65
573 100 349
Now make up a similar puzzle for others to solve.
125
9781380050687__text.indb 125
03/05/2022 10:19
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