9999999+99999999

asked by guest
on Mar 23, 2025 at 2:18 am



You asked:

Evaluate the expression: 9999999+999999999999999 + 99999999

MathBot Answer:

9999999+99999999=109999998 9999999 + 99999999=109999998

01019191919191919+0099999999109999998 \begin{aligned} \overset{\mathtt{1}}{\phantom{0}}\overset{\mathtt{1}}{\phantom{0}}\overset{\mathtt{1}}{\mathtt{9}}\overset{\mathtt{1}}{\mathtt{9}}\overset{\mathtt{1}}{\mathtt{9}}\overset{\mathtt{1}}{\mathtt{9}}\overset{\mathtt{1}}{\mathtt{9}}\overset{\mathtt{1}}{\mathtt{9}}\mathtt{9}\\ \mathtt{+\phantom{0}}\phantom{0}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\\ \hline \mathtt{1}\mathtt{0}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{9}\mathtt{8} \end{aligned}

88 is the digit in the 10010^{0} place. 9×100+9×100=18×100=1×101+8×1009 \times 10^{0} + 9 \times 10^{0} = 18 \times 10^{0} = 1 \times 10^{1} + 8 \times 10^{0}.1×1011 \times 10^{1} carries to the 10110^{1} place.

99 is the digit in the 10110^{1} place. 1×101+9×101+9×101=19×101=1×102+9×1011 \times 10^{1} + 9 \times 10^{1} + 9 \times 10^{1} = 19 \times 10^{1} = 1 \times 10^{2} + 9 \times 10^{1}.1×1021 \times 10^{2} carries to the 10210^{2} place.

99 is the digit in the 10210^{2} place. 1×102+9×102+9×102=19×102=1×103+9×1021 \times 10^{2} + 9 \times 10^{2} + 9 \times 10^{2} = 19 \times 10^{2} = 1 \times 10^{3} + 9 \times 10^{2}.1×1031 \times 10^{3} carries to the 10310^{3} place.

99 is the digit in the 10310^{3} place. 1×103+9×103+9×103=19×103=1×104+9×1031 \times 10^{3} + 9 \times 10^{3} + 9 \times 10^{3} = 19 \times 10^{3} = 1 \times 10^{4} + 9 \times 10^{3}.1×1041 \times 10^{4} carries to the 10410^{4} place.

99 is the digit in the 10410^{4} place. 1×104+9×104+9×104=19×104=1×105+9×1041 \times 10^{4} + 9 \times 10^{4} + 9 \times 10^{4} = 19 \times 10^{4} = 1 \times 10^{5} + 9 \times 10^{4}.1×1051 \times 10^{5} carries to the 10510^{5} place.

99 is the digit in the 10510^{5} place. 1×105+9×105+9×105=19×105=1×106+9×1051 \times 10^{5} + 9 \times 10^{5} + 9 \times 10^{5} = 19 \times 10^{5} = 1 \times 10^{6} + 9 \times 10^{5}.1×1061 \times 10^{6} carries to the 10610^{6} place.

99 is the digit in the 10610^{6} place. 1×106+9×106+9×106=19×106=1×107+9×1061 \times 10^{6} + 9 \times 10^{6} + 9 \times 10^{6} = 19 \times 10^{6} = 1 \times 10^{7} + 9 \times 10^{6}.1×1071 \times 10^{7} carries to the 10710^{7} place.

00 is the digit in the 10710^{7} place. 1×107+0×107+9×107=10×107=1×108+0×1071 \times 10^{7} + 0 \times 10^{7} + 9 \times 10^{7} = 10 \times 10^{7} = 1 \times 10^{8} + 0 \times 10^{7}.1×1081 \times 10^{8} carries to the 10810^{8} place.

11 is the digit in the 10810^{8} place. 1×108+0×108+0×108=1×1081 \times 10^{8} + 0 \times 10^{8} + 0 \times 10^{8} = 1 \times 10^{8} .

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