noun, takes する, transitive verb

  1. mental arithmetic.

Variations

Pronunciation Kanji Kana Is Common
暗算 あんざん

Contained Kanji Breakdown

darkness, disappear, shade
アン くら.い くれ.る (3rd, N3)
day, sun, Japan
ひ にっ ニチ (1st, N5)
sound, noise
おと オン ね (1st, N4)
stand up, rise, set up
た.つ リツ たつ (1st, N4)
kettle lid radical (no. 8)
トウ (Kentei 1)
grass, straw, herbs
to divide
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
calculate, divining, number
サン そろ (2nd, N2)
bamboo
たけ チク たか (1st, N2)
individual(個) variant
knife, wrapping enclosure(勹) variant
feathered stick, barb radical (no. 6)
ケツ かぎ (Kentei 1)
eye, class, look
め モク ボク (1st, N4)
twenty, twenty or letter H radical (no. 55)
キョウ ク にじゅう (Kentei 1)