Number Thinking(1)( Week 23 Practice)
1. All the numbers are from 7 to 12 and each number is only allowed to be used once. Fill in the blanks with the remaining numbers within the range so that the sums of the three numbers in each side are the same.
2. What is the square root of 49? 3. What is the smallest prime number such that of the prime is larger than 10? 4. What is the greatest common factor (GCF) of 18 and 45? 5. A and B are two different natural numbers that are less than 20. What is the largest value that can have?