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
1 × 10 = ______
75 + 10 = ______
66 + 10 = ______
49 − 10 = ______
6 × 10 = ______
22 − 10 = ______
72 + 20 = ______
58 + 20 = ______
5 × 10 = ______
3 × 10 = ______
20 + 10 = ______
35 + 10 = ______
84 + 20 = ______
87 + 10 = ______
58 + 10 = ______
58 − 10 = ______
4 × 10 = ______
53 + 20 = ______
63 − 10 = ______
19 + 10 = ______
