In a magic-square arrangement, the numbers 1 to 9 are placed in a 3 × 3 grid so that each row, column, and main diagonal sums to 15. The centre cell holds the number 5. The corner cells (4 corners) all hold even numbers. Find the SUM of the four corner cells.
FREE QUIZ · PRIMARY 2 MATHEMATICS
Multiplication Tables
Five MCQs on Multiplication Tables. Pick an answer, see the specific misconception. The diagnosis comes after the score.
Only 3 approved MCQs live for this combo today — more coming soon.
In a Singapore class of 36 children, the children are arranged in groups of 4. Each group makes 7 paper cranes. After all groups have made their cranes, the cranes are split equally among 9 students for delivery to a hospital. How many cranes does each student deliver?
A box of marbles weighs 7 grams when empty. When 9 identical marbles are placed inside, the box and marbles weigh 70 grams in total. If the same empty box is filled with 12 of these marbles instead, find the total weight.