☰ Contents · Mathematics

Numbers to 100: round tens, reading and writing

Lessons 58–61 · 4 lessons · I.V. Repyova, Y.V. Zemlina. Mathematics Grade 1, Parts 1–4. Novda Edutainment, 2023
Answers are for parents and teachers.
1
Write the tens from 10 to 100.
2
Write as tens plus ones: 35, 72, 98, 60
3
Write the neighbours: _, 50, _; _, 99, _; _, 27, _
4
Work out: 20 + 70, 100 − 30, 50 + 50, 80 − 80
5
Count coins (or buttons) at home by grouping them in tens. How many?