The phrase "almost elementary" is correct and usable in written English.
It can be used to describe something that is nearly simple or basic, but not quite at that level of simplicity.
Example: "The math problem was almost elementary, but it still required a bit of thought to solve."
Alternatives: "nearly basic" or "practically simple".
"They're very basic, almost elementary," Mr. Messana said.
The Vikings keep Christian Ponder in a conservative, almost elementary passing system.
Monumentality and care accompanied an almost elementary simplicity: the entire system, after all, is based on the creation of sturdy electrical circuits.
Life, in all its complexity, we are reminded at the beginning, is based upon almost elementary information: four symbols — the A, C, G and T that stand for DNA's nucleic acids — and the order in which they appear in the genome.
It is perhaps one of the most hurtful and harmful injustices committed against mankind--yet it's an act that's so simple, almost elementary, to commit.
"By the time it became widely known, most elementary schools were almost out," she said.
It seems almost impossible to talk about elementary particle physics, or QFT more generally, without thinking of particles which are accelerated and scattered in colliders.
The quake demolished almost 9,600 elementary schools and damaged or destroyed more than 2,000 secondary schools.
And that is on top of test preparation that almost all elementary schools now provide in class.
Although female school enrollment ratios rose throughout the Middle East, they remained considerably lower than male ratios in every country except Lebanon and Israel, which achieved almost universal elementary literacy.
In last spring's citywide third-grade math and English tests, Shuang Wen ranked third in math and 23rd in English among the city's almost 1,000 elementary schools.
