1.
436+298=436+300-2=734
209+395=395+5+204=400+204=604
436+298 > 209+395
734 > 604
2.
307+439=306+1+439=306+440=746
307=307
439=439
307+439=439+307
3.
86+186=186+14+72=200+72=272
91+199=199+1+90=290
86+186 < 91+199
272 < 290
4.
515+208=500+200+15+8=723
498+307=498+2+305=805
515+208 < 498+307
723 < 805
1.
436+298=436+300-2=734
209+395=395+5+204=400+204=604
436+298 > 209+395
734 > 604
2.
307+439=306+1+439=306+440=746
307=307
439=439
307+439=439+307
3.
86+186=186+14+72=200+72=272
91+199=199+1+90=290
86+186 < 91+199
272 < 290
4.
515+208=500+200+15+8=723
498+307=498+2+305=805
515+208 < 498+307
723 < 805