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)