11.2 Billion
It might be possible to work this in your head. Your 98 is 100 minus 2. This means 98 plus 98 is 100 plus 100 minus 2 minus 2. That's 200 minus 4 which gives 196 as the answer.
1.2 billion minus 3.2 million = 1.1968 billion
2.8 billion minus 142 million is 2,658,000,000
7 billion minus 5 million is 6,995,000,000
1.2 billion minus 312 million is 888,000,000
It might be possible to work this in your head. Your 98 is 100 minus 2. This means 98 plus 98 is 100 plus 100 minus 2 minus 2. That's 200 minus 4 which gives 196 as the answer.
999,999,998,000,000,000
1.2 billion minus 3.2 million = 1.1968 billion
9,800,000,000
4.6 billion
3.9 billion minus 346 million = 3,554,000,000
2.8 billion minus 142 million is 2,658,000,000
7 billion minus 5 million is 6,995,000,000
6.4 trillion minus 6 billion is 6,394,000,000,000
1.2 billion minus 312 million is 888,000,000
7 billion minus 900 million = 6,100,000,000
6.8 billion minus 309 million = 6,491,000,000