Addition
250+390
640
230-100
130
Of 800,000 species of insects, about 560,000 undergo complete metamorphosis. How many species do not undergo complete metamorphosis?
240,000
Round 325 to the nearest hundred
300
340+m=576
What is the value of m?
236 = m
4,000+267
4,267
489-325
164
The Great Pyramid of Giza has about 2,000,000 stone blocks. A replica has 1,900,000 fewer blocks. How many blocks are in the replica?
100,000
Round 452 to the nearest tens
450
347+b=1,876
What is the value for b?
b=1,529
35,817+6,790
42,607
3,809-429
3,380
Elana's coach had some money to spend on softball equipment. She spent $76 on bases. She has $174 left. How much did she have to start?
$250
Round 3,765 to the nearest thousand
4,000
3,878-b=2,878
What is b?
b=1,000
570,468+3,789
574,257
4,000-1,234
2,766
Mary drove her car 2,483 miles during a road trip. Now she has 86,445 miles on her car. How many miles did her car have before her trip?
83,962 miles
Round 378,890 to the nearest ten thousand
380,000
32,890+v=250,909
What is v?
v=218,019
143,787+567,890
711,677
250,897-14,234
236,663
Last week there were two football games. There were 3,982 people at the first game. There were 1,886 fewer people at the second football game than the first game. How many people attended BOTH football games last week?
6,078 People
Round 467,873 to the nearest ten
467,870
32,904 + b = 61,381
What is b?
28,477 = b