☰ Mundarija · Matematika

Millimetr, perimetr, qo‘shish va ayirish bog‘liqligi

Darslar 64–68 · 5 ta dars · I.V. Repyova, Y.V. Zemlina. Matematika 2-sinf, 1–4-qismlar. Novda Edutainment, 2023
Javoblar ota-onalar va o‘qituvchilar uchun.
1
5 sm 3 mm = ? mm
2
2 dm 6 sm 2 mm + 3 dm 9 sm 6 mm = ? mm
3
Kvadratning tomoni 7 dm. Perimetri necha dm?
4
345 + 278 = 623 ekanini bilib, 623 − 345 = ?
5
(365 − 148) + (435 − 326) = ?