Question
P6.MS.JC.18081001-A1
Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
  1. 310 + 210 + 410 = _____ x 110 + 310
  2. 915 - 215 - 515 = 615 - _____ x 115
  3. 717 + 317 - 317 = _____ x 117 - 117
  4. 129 + 19 = 19 x _____ + 39
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STUDENT

Primary 6 MENTAL SUMS P6.MS.JC.18081001

16 Jun 2024, 06:21 PM

Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
  1. 310 + 210 + 410 = _____ x 110 + 310
  2. 915 - 215 - 515 = 615 - _____ x 115
  3. 717 + 317 - 317 = _____ x 117 - 117
  4. 129 + 19 = 19 x _____ + 39
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