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
65 + 10 = ______
77 + 10 = ______
58 + 20 = ______
59 − 10 = ______
24 + 10 = ______
16 + 20 = ______
35 + 10 = ______
8 × 10 = ______
4 × 10 = ______
55 + 20 = ______
31 − 10 = ______
12 + 10 = ______
33 + 10 = ______
2 × 10 = ______
7 × 10 = ______
5 × 10 = ______
63 + 20 = ______
13 + 10 = ______
50 − 10 = ______
90 − 10 = ______
