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
5 × 10 = ______
50 + 20 = ______
63 + 20 = ______
84 − 10 = ______
3 × 10 = ______
20 + 20 = ______
25 + 20 = ______
8 × 10 = ______
37 + 10 = ______
88 + 10 = ______
31 + 10 = ______
9 × 10 = ______
11 + 20 = ______
70 + 20 = ______
29 − 10 = ______
77 + 10 = ______
56 − 10 = ______
2 × 10 = ______
7 × 10 = ______
40 + 10 = ______
