Question

EXERCICI
A. Estimate first, then name the sum or
difference. Use your estimate to check your
work.
1. 41 +37
2. 428 + 61
3. 1314 +272 4. 1521 +4325
5. 33278 + 1902 6. 9893 - 5164
7. 27348 - 1267 8. 1597 - 290
9. 8001 - 457 10. 55662 - 3465​

Answer 1

Answer:

1. 40+40=80
2. 430+60=490
3. 1310+270=1580
4. 1520+4320=5840
5. 33280+1900=52280