Page 37 - PlayFacto_B7
P. 37
Placing number chips
Find how to make the number sentence (2-digit) – (2-digit) with the
greatest difference or the least difference. Write the appropriate letters
in the blanks to complete the sentences.
AB Think about the
numbers in the
tens place.
-C D
The greatest difference
To make the greatest difference between 2-digit numbers AB and CD,
place the greatest number in the and place the least number
in the .
The least difference
To make the least difference between 2-digit numbers AB and CD,
① place the closest numbers in the tens places and .
② From the other two numbers, place a less number in the and a
greater number in the .
③ If there are many possibilities of the two closest numbers, find the
difference in order of ① - ② and compare the differences. If the numbers
in the tens place are the same, place a greater number in the and a
less number in the from the rest of two numbers.
34 Workbook B-7
Find how to make the number sentence (2-digit) – (2-digit) with the
greatest difference or the least difference. Write the appropriate letters
in the blanks to complete the sentences.
AB Think about the
numbers in the
tens place.
-C D
The greatest difference
To make the greatest difference between 2-digit numbers AB and CD,
place the greatest number in the and place the least number
in the .
The least difference
To make the least difference between 2-digit numbers AB and CD,
① place the closest numbers in the tens places and .
② From the other two numbers, place a less number in the and a
greater number in the .
③ If there are many possibilities of the two closest numbers, find the
difference in order of ① - ② and compare the differences. If the numbers
in the tens place are the same, place a greater number in the and a
less number in the from the rest of two numbers.
34 Workbook B-7
