Mental math addition
Presentation
•
Mathematics
•
3rd Grade
•
Hard
Amritha Goranka
Used 1+ times
FREE Resource
4 Slides • 0 Questions
1
2
Add the hundreds first, 700+500=1200
Then add 30+20= 50
So the total is 1200+50=1250
3
Add 130 and 450
steps :
100+400=500
30+50=80
500+80=580
4
410+890
520+330
480+310
590+630
440+580
870+590
640+390
780+690
570+540
330+660
650+480
590+480
730+850
860+370
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