Grade 1 - Mathematics 6.3 Time, Money, and Estimating

Method:

Look at the number. If the last digit or the units digit is 5 or more than 5 we add 1 to the number in the tens place and make the units digit 0.

If the last digit or the units digit is less than 5 then make the units digit 0 and keep the tens digit as it is.

Example:
Which would be the best estimate for 108 + 32 = ? Answer: 110 + 30 Directions: Answer the following questions. Also write at least ten examples of your own.

Q 1: The month that Thanksgiving is celebrated in the U.S. is October July November January

Q 2: Which number shows less than $5 but more than $3? $4.15 $6.37 $5.36

Q 3: In which month does New Year begin? January July December February

Q 4: How often do you celebrate your birthday? Once a month Once a week Once a year

Q 5: A shelf of the bookcase holds 8 books. It has 3 shelves. How many books will the bookcase hold? 8 24 16

Q 6: The first grade has 11 girls and 9 boys. Two girls were absent on Monday? How many children were present on Monday? 18 22 20

Q 7: Which would be the best estimate for 109 + 38 = ? 130+50 130+50 110+40

Q 8: Which would be the best estimate for 77 + 32= ? 80 + 40 80 + 30 70 + 40

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!