Show:
Place Value
Rounding
Adding
Subtractin
Lines, Line Segments, Angles
100
What is the value of the 4 in 8,549?
40
100
646 Round to the 100ths place.
600
100
646+738
1,384
100
655-321=
334
100
Draw and label point Z
See white board
200
What is the value of the 8 in 8,549?
8,000
200
48 Round to the tens place
50
200
356+467=
823
200
895-637=
258
200
Draw and label line segment EF Line EF Tell me how they are different
Line Segments have endpoints Lines go on forever
300
65,421 The four is in the ____________ 's place.
Hundreths
300
5,768 Round to the thousands place.
6,000
300
547+321=
868
300
741-369=
372
300
Two lines that cross to form a right angle are called?
Perpendicular lines
400
768,485 The 6 is in the ______________'s place.
Ten thousandths
400
456,789 Round to the thousands place.
457,000
400
ROUND FIRST. Tell me your estimate. Then actually add and tell me the actual answer 674+397=
Round: 700+400 = 1,100 Actual: 1,071
400
ROUND FIRST. Tell me your estimate. Then actually subtract and tell me your actual answer. 674-235=
Round: 700-200= 500 Actual: 439
400
Find the perimeter of a rectangle is the Length = 16 feet and the Width = 13 Feet
58 feet
500
3,285,796 The 2 is in the _______________'s place.
Hundred thousandths
500
5,234,789 Round to the tens place
5,234,790
500
ROUND FIRST. Tell me your estimate. Then actually add and tell me your actual answer. 3,476+536=
Round: 3,500+500= 4,000 Actual: 4,012
500
ROUND FIRST. Tell me your estimate. Then actually subtract and tell me your actual answer. 422-278=
Round: 400-300=100 Actual: 144
500
Draw and Label the three different types of angles.
White boards Angle names: Acute, Right, Obtuse