Mental Maths improves concentration span, number sense, sharpens memory and reduces calculation errors. Happy Practising!
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Write the missing numbers in the series.
327, 328 330
Write the missing numbers in the series.
354, 355, 356
Write the missing numbers in the series.
419, 420 422
Write the missing numbers in the series.
487, 488, 489
Write the missing numbers in the series.
399, 401 403
Write the missing numbers in the series.
388, 389, 391
Write the missing numbers in the series.
446, 447, 448
Write the missing numbers in the series.
508, 509, 510
Write the missing numbers in the series.
522, 524, 525
Write the missing numbers in the series.
573, 574 577
