estimate first and then name the sum or difference. use your estimate to check your work (i) 1314 +272 (ii) 1512 +4325 (iii) 33278+1902 (iv) 9893 - 5164. Created by shruti415. Math

Answer with explanation:1. 1314 +272Actual sum = 1586If Estimated by ten's=1590If Estimated by hundred's=1600Estimation using Ten's1310+270=1580Estimation using Hundred's1300+300=16002.1512 +4325Actual sum = 5837If Estimated by ten's=5840If Estimated by hundred's=5800Estimation using Ten's1510+4330=5840Estimation using Hundred's1500+4300=58003. 33278+1902Actual sum =35180If Estimated by ten's=35180If Estimated by hundred's=35200Estimation using Ten's33280+1900=35180Estimation using Hundred's33300+1900=352004. 9893 -5164Actual difference =4729If Estimated by ten's=4730If Estimated by hundred's=4700Estimation using Ten's9890-5160= 4730Estimation using Hundred's9900 - 5200= 4700