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P. 216
13Number Card Puzzles Unit
Material Number Cards [A7]
3 . Use number cards to complete the puzzle. Number Cards (A7) 3. The level of this problem is fairly high.
Give students plenty of time to complete all
What you need: 6 sentences.
How to Solve Question 3:
To save time, you must find
the missing numbers in the
sentences indicated by the
colored boxes.
63 18 The product and the dividend of the related
multiplication and division sentences must
be the same in order to complete the puzzle.
Look at the following related sentences.
( ) ( )6 3 18
18 9 2
, 6 3 18
18 2 9
( ) ( )3 6 18
18 2 9
, 3 6 18
18 9 2
( ) ( )2 9 18
18 6 3
33 9 , 2 9 18
18 3 6
The sentences that meet the condition of the
puzzle are as follows:
Method 1: 6 3 18, 18 9 2
Method 2: 9 2 18, 18 6 3
You can complete the puzzle using the 2
20 2 methods above.
(Refer to .)
13. Number Card Puzzles 125
Two Ways to Complete the Puzzle Method 2:
Method 1:
3A Unit 13 199
Material Number Cards [A7]
3 . Use number cards to complete the puzzle. Number Cards (A7) 3. The level of this problem is fairly high.
Give students plenty of time to complete all
What you need: 6 sentences.
How to Solve Question 3:
To save time, you must find
the missing numbers in the
sentences indicated by the
colored boxes.
63 18 The product and the dividend of the related
multiplication and division sentences must
be the same in order to complete the puzzle.
Look at the following related sentences.
( ) ( )6 3 18
18 9 2
, 6 3 18
18 2 9
( ) ( )3 6 18
18 2 9
, 3 6 18
18 9 2
( ) ( )2 9 18
18 6 3
33 9 , 2 9 18
18 3 6
The sentences that meet the condition of the
puzzle are as follows:
Method 1: 6 3 18, 18 9 2
Method 2: 9 2 18, 18 6 3
You can complete the puzzle using the 2
20 2 methods above.
(Refer to .)
13. Number Card Puzzles 125
Two Ways to Complete the Puzzle Method 2:
Method 1:
3A Unit 13 199