Page 214 - NUMINO TG_3A

Material Number Cards [A1] 13Number Card Puzzles Unit

For this problem, 1 number sentence is
given to guide students. Have them find the
missing numbers to complete the number
puzzle.
Then, have students solve more challenging
number puzzles in the following pages.
To complete the number puzzles
successfully, students can try numbers for
one number sentence, and see if they can fill
in the remaining blanks according to that
first number sentence. If it doesn’t work,
they can try different numbers.

54

17 8

13. Number Card Puzzles 123

Example: How to solve question 1 using the method on the left.
Solution: 8 4 2, 8 2 4, 6 3 2, 6 2 3

2 3 6, 3 2 6, 4 2 8, 2 4 8
In order to complete the puzzle, the quotient of the division sentence must be the same as the
first factor in the related multiplication sentence. Write the two related sentences, as shown
below. You cannot use the same numbers in the related sentences. Cross out the numbers you
cannot use as you are working to find the missing numbers.
Method 1: 8 4 2 and 2 3 6
Method 2: 6 3 2 and 2 4 8
Have students use the sentences from method 1 and 2 to find the correct answers.
Answer: You can complete the puzzle using both methods. The answer is the same as what you see in the
textbook.

3A Unit 13 197