This when you are rounding off 43210 copy,56789 add 1
300000 and 1000
1000 x 40 = 40,000
2 x 6300 = 12,600 The actual answer is 12,508.
20 rounding units. 20.0 rounding tenths 19.8 rounding hundredths 19.76 rounding thousandths 19.765 rounding tenthousandths 19.7649 rounding hundred thousandths
Rounding
Rounding off, 80 x 60 = 4800. The actual product is 4698.
By rounding off.
9X60
28
40 x 30 = 1200
This when you are rounding off 43210 copy,56789 add 1
300000 and 1000
1000 x 40 = 40,000
2 x 6300 = 12,600 The actual answer is 12,508.
Compatible numbers would be easier. Rounding gives you 14 x 47. Compatible numbers could be 13 x 50 which would be closer to the actual product.
70 x 20 = 1400