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.
567, 566 564
Write the missing numbers in the series.
607, 608, 609
Write the missing numbers in the series.
532, 531 529
Write the missing numbers in the series.
483, 482, 481
Write the missing numbers in the series.
436, 438 430
Write the missing numbers in the series.
597, 598, 600
Write the missing numbers in the series.
562, 561, 560
Write the missing numbers in the series.
476, 477, 478
Write the missing numbers in the series.
688, 690, 691
Write the missing numbers in the series.
473, 472 469
