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
53 − 10 = ______
79 + 20 = ______
83 + 10 = ______
38 − 10 = ______
56 + 10 = ______
47 − 10 = ______
36 − 10 = ______
2 × 10 = ______
50 + 20 = ______
8 × 10 = ______
45 − 10 = ______
7 × 10 = ______
58 − 10 = ______
37 + 20 = ______
45 + 20 = ______
65 − 10 = ______
1 × 10 = ______
55 + 20 = ______
77 + 20 = ______
4 × 10 = ______
