mental calculation; calculate in one's head
Tone colorsmāmámǎmàma
Meanings
1 sense · 4 examplesverb
to calculate mentally; to do mental arithmetic; to compute in one's head without tools
Emphasizes the absence of external calculation tools such as paper, pens, abacuses, or calculators.
Tā他
néng能
xīn心
suàn算
sān三
wèi位
shù数
de的
chéng乘
fǎ法
。
He can mentally multiply three-digit numbers.
Xīn心
suàn算
bǐ比
yòng用
jì计
suàn算
qì器
kuài快
duō多
le了
。
Mental arithmetic is much faster than using a calculator.
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Zhè这
dào道
shù数
xué学
tí题
hěn很
jiǎn简
dān单
，
nǐ你
kě可
yǐ以
yòng用
xīn心
suàn算
。
This math problem is very simple; you can work it out in your head.
Tā她
de的
xīn心
suàn算
néng能
lì力
hěn很
qiáng强
。
She has very strong mental arithmetic skills.