Please continue to review mental math strategies at home with your child.  Parents should continue to sign their child's packet 2 times a week.  This packet should be returned to school each Monday with the quiz they did at home.  Below is a review of how students should use mental math when they encounter decimals.  I have also included some sample questions for your use.   Estimation should be used to develop a sense of the size of the answer for all calculations involving decimals. Multiplying by a decimal -Take the decimal away and multiply the numbers, add the decimal back.  Use an estimation to help put the decimal back. -Ex 0.4 x 12= 4.8 4 x 12 = 48   0.4 is close to 0.5.      0.5 x 12=6 so replace the decimal to the tenths and get 4.8   Practice questions:                                                     Answers4.6 x 2 =                                             9.2 0.4 x 12 =                                             4.8 0.32 x 0.02 =                                       0.0064 1.5 x 0.3 =                                            0.45 0.07 x 11 =                                           0.77