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
43 − 10 = ______
25 + 20 = ______
8 × 10 = ______
2 × 10 = ______
72 − 10 = ______
77 + 20 = ______
66 + 10 = ______
60 + 20 = ______
4 × 10 = ______
69 + 20 = ______
5 × 10 = ______
69 − 10 = ______
13 + 20 = ______
84 − 10 = ______
25 − 10 = ______
30 + 10 = ______
20 + 10 = ______
1 × 10 = ______
22 + 10 = ______
7 × 10 = ______
