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Using counters (you could use buttons, beads, coins, pasta pieces etc) we are going to make different arrays and record the number sentences for them.
Get 16 counters and make them into an array, remembering there needs to be an equal amount on each row/column.
Next write as many calculations as you can to go with your array. Use your counters to make a different array and repeat.
Afterwards, complete the questions using the attached activity sheet with the amounts given.