ROUNDING NUMBERS
ROUND 12 TO THE NEAREST TENTH.
10
Look at the picture and write the standard form.
138
<,>, or =
293 ___ 293
293 _=_ 239
Show this equation on a number line.
2+4
2+4=6
Show example.
Olivia, Sophia, and Ava like jigsaw puzzles. Olivia has a puzzle with 513 pieces. Sophia has a puzzle with 750 pieces. Ava’s puzzle has 400 pieces. Whose puzzle has the most pieces?
Olivia has the most puzzle pieces.
ROUND 37 TO THE NEAREST TENTH
40
What is the expanded form of 417?
400+10+7
<,>, or =
398 ___ 389
398 _>__ 389
Show this equation on a number line.
6+4
6+4=10
Show example.
Owls------180, Penguins----170, Chickens----290, Gulls----370, Hummingbirds---425
Estimate how many bird there are in total by rounding the numbers to the nearest hundredth.
200+200+300+400+400=1500
ROUND 247 TO THE NEAREST HUNDREDTH.
200
What is the number name of 210?
two hundred ten
<.>. =
999 ____998
999 __>__998
Show this equation on a number line.
10-6
10-6=4
Show example
This week Emma spends 36 minutes practicing piano on Monday, 42 minutes on Wednesday, and 57 minutes on Saturday. About how much time in all does she practice piano this week?
ROUND 777 TO THE NEAREST HUNDREDTH.
800
What is the place values of 309
____hundreds ______tens ______ones
__3__hundreds ___0___tens ___9___ones
Put these numbers from greatest to least.
410,555,439
555, 439, 410
Show this equation on a number line.
22-5
22-5=7
ROUND 567 TO THE NEAREST TENTH AND NEAREST HUNDREDTH.
570 AND 600
Write 715 in expanded form, standard form, and number name.
700+10+5
715
seven hundred fifteen
Put these numbers from least to greatest.
345, 390, 320
320, 345, 390
The English alphabet has 26 letters. The Russian alphabet has 32 letters. What is the difference in the number of letters? Use the number line to represent the difference.
32-26=6