Q.1.
Which is the best method of calculating 1.5 + 1.6?
Q.2.
Which of these pairs would not total 700?
Q.3.
What is the best method of subtracting 79?
Q.4.
Which strategy would be best to calculate 347 + 97?
Q.5.
What would you add to 6.4 to make 7?
Q.6.
Which of these pairs does not total 1?
Q.7.
Which of these pairs does not total 100?
Q.8.
Which is the best method of calculating the missing number in this problem: ___ - 23 = 176?
Q.9.
How would you calculate 3,004 - 2,898?