Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
68 + 20 = ______
66 − 10 = ______
62 − 10 = ______
3 × 10 = ______
25 − 10 = ______
13 + 20 = ______
79 + 20 = ______
11 + 20 = ______
8 × 10 = ______
54 − 10 = ______
32 + 10 = ______
64 + 10 = ______
48 + 10 = ______
57 + 20 = ______
28 − 10 = ______
71 + 10 = ______
65 + 20 = ______
7 × 10 = ______
5 × 10 = ______
21 + 20 = ______
