Angles/Perimeter
Circle the obtuse angles
Bigger than a right angle
Estimate and then solve using U.S. traditional addition.
234 + 987
1,221
230+ 990= 1,220
Round 4,231 to the nearest thousand
4,000
Identify the values of the digits in the number 9,628.
Use a place-value tool, if needed.
The digit 6 represents__________
600
1 yard = feet
3 feet
Circle the acute angles
smaller than a right angle
653+764
Estimate and then solve
1,417
650+760= 1,410
round 1,233 to the nearest tens place
1,230
Identify the values of the digits in the number 9,628.
Use a place-value tool, if needed.
The digit 9 represents__________
9,000
4 yards = feet
12 feet
circle the right angles
smaller than an obtuse angle but bigger than an acute angle
Subtract 985- 194=
Estimate and then solve
791
990-190=800
round 923,230 to the nearest hundred-thousand
900,000
Identify the values of the digits in the number 9,628.
Use a place-value tool, if needed.
The digit 2 represents__________
20
10 yards = feet
30 feet
What is the perimeter of rectangle?
all the sides
713-294=
Estimate and then solve.
419
710-300= 410
Round 98,234 to the nearest thousand.
98,000
Identify the places of the digits in the number 38,239.
Use a place-value tool, if needed.
The 3 is in the _____________________ place.
ten thousands place
1 foot = inches
12 inches
What is the perimeter of the rectangle?
Don't forget the units.
Mr. Xiong cooked 87 beautiful muffins on Saturday, 23 on Sunday, and 190 on Monday. He gave 23 to his cousins. Mr. Xiong needs 400 muffins for the bake sale. Without solving, do you think he made enough? Explain your estimation strategy.
Then find the exact number he needs for the bake sale.
123 muffins
round 6,342 to the nearest hundred.
6,300
Identify the places of the digits in the number 38,239.
Use a place-value tool, if needed.
The 2 is in the _____________________ place.
hundreds
4 feet = inches
48 inches