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
50 − 10 = ______
6 × 10 = ______
84 − 10 = ______
33 + 10 = ______
24 + 20 = ______
63 − 10 = ______
7 × 10 = ______
72 + 20 = ______
82 − 10 = ______
23 + 20 = ______
4 × 10 = ______
87 + 10 = ______
18 + 10 = ______
46 − 10 = ______
47 − 10 = ______
51 + 10 = ______
48 − 10 = ______
64 + 20 = ______
1 × 10 = ______
57 + 20 = ______
