Addition and Subtarction

240+453

• 974
• 643
• 693
• 854

7,836+8,394

• 17,456
• 578
• 1,686
• 16,230

7,890+6,019

• 13,909
• 777
• 577,876
• 5,678

5,016+768

• 1,110
• 5,795
• 56,547
• none of the above

128+338

• 776
• 7,979
• 466
• 7,546

1,283-1,161

• 567
• 122
• 5,678
• 56,789

3,467+7,632

• 46,869
• 45,785
• 11,990
• 11,099

13,473-12,346

• 25,819
• 1,127
• 57,598
• 36,486

3,487-1,252

• 2,235
• 20,
• 5,698
• 35,687

307,362-216,873

• 89,409
• 90,489
• 674,796
• no answer ....