Students learned how to use rounding to estimate products.
A few things students must remember:
-You must round first before you do any calculations.
-You must round the number that is not the single digit number.
-You must round to the greatest place value.
EX: 7 x 234 = ---> 234 rounded to the nearest hundred is 200 so we re-write the problem as 7 x 200 = ---> then we multiply 7 times 2 which is 14 then add 2 zeros. The estimated product is 1,400.
Here is a helpful video (full screen to make bigger):
Room 148: Third, Fourth, Fifth Grade Mathematics Curriculum. Presented by Ms. Kominczak, Mrs. Cao, and Mrs. Gayer. Discussion of math curriculum and STAAR Math testing. View EnVision/Pearson website and receive log-in information. Discussion of ways parents can help students at home (STAAR practice, etc.).
Session Times: 5:10 pm; 5:30 pm; 5:50 pm; 6:10 pm