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
16 + 20 = ______
67 − 10 = ______
1 × 10 = ______
23 + 20 = ______
20 + 20 = ______
7 × 10 = ______
63 + 20 = ______
6 × 10 = ______
77 + 10 = ______
5 × 10 = ______
3 × 10 = ______
19 + 10 = ______
33 + 20 = ______
37 + 10 = ______
13 + 20 = ______
80 + 10 = ______
40 − 10 = ______
45 + 20 = ______
55 − 10 = ______
8 × 10 = ______
