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 = ______
91 − 10 = ______
6 × 10 = ______
19 + 10 = ______
2 × 10 = ______
3 × 10 = ______
33 + 20 = ______
83 + 20 = ______
84 + 20 = ______
65 − 10 = ______
36 − 10 = ______
26 + 10 = ______
16 + 10 = ______
77 + 10 = ______
18 + 20 = ______
77 + 20 = ______
1 × 10 = ______
51 − 10 = ______
51 + 20 = ______
57 + 10 = ______
