Tuesday, October 4, 2016

Math Practice: Add Rounded Numbers

These slides give folks an opportunity to round numbers and then add them together. For extra practice, readers could go back through and add the numbers without rounding and compare how long it takes compared to rounding and then adding and when one might round numbers and when it would be more appropriate to have exact answers.

Directions
  1. Click on the first slide to enlarge.
  2. Click on the slide or thumbnail at the bottom to advance to the next slide.
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Add Rounded Numbers

Free Math Practice Test by Katrena

Round 33 and 44 and add

30 + 40 = 70

Round 25 and 71 and add

30 + 70 = 100

Round 17 and 41 and add

20 + 40 = 60

Round 75 and 62 and add

80 + 60 = 140

Round 89 and 6 and add

90 + 10 = 100

Round 71 and 24 and add

70 + 20 = 90

Round 63 and 55 and add

60 + 60 = 120

Round 121 and 32 to the nearest ten and add

120 + 30 = 150

Round 222 and 444 to the nearest ten and add

220 + 440 = 660

Round 97 and 129 to the nearest ten and add

100 + 130 = 230

Round 15 and 115 to the nearest ten and add

20 + 120 = 140

Round 99 and 11 to the nearest ten and add

100 + 10 = 110

Round 71 and 105 to the nearest ten and add

70 + 110 = 180

Round 555 and 37 to the nearest ten and add

560 + 40 = 600

Round 321 and 684 to the nearest ten and add

320 + 680 = 1000

Free Math Practice Test on Student Survive 2 Thrive

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