Rounding to the nearest 10
Round 78 to the nearest ten
80
round 218 to the nearest hundred
200
150+354
504
348-126
222
round 123 to the nearest ten
120
round 360 to the nearest hundred
400
347+251
598
659-348
311
round 289 to the nearest ten
290
round 138 to the nearest hundred
100
615+167
782
569-219
350
round 407 to the nearest ten
410
round 670 to the nearest hundred
700
478+267
745
310-154
156
round 655 to the nearest 10
660
round 450 to the nearest hundred
500
691+239
930
804-426
378