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
80 + 10 = ______
42 + 10 = ______
62 − 10 = ______
63 + 10 = ______
37 − 10 = ______
63 − 10 = ______
86 − 10 = ______
1 × 10 = ______
8 × 10 = ______
56 − 10 = ______
96 − 10 = ______
6 × 10 = ______
98 − 10 = ______
86 + 20 = ______
63 + 20 = ______
39 − 10 = ______
57 + 10 = ______
3 × 10 = ______
24 + 20 = ______
4 × 10 = ______
