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
24 − 10 = ______
25 + 20 = ______
84 + 10 = ______
60 + 20 = ______
47 − 10 = ______
24 + 20 = ______
21 − 10 = ______
22 − 10 = ______
43 + 20 = ______
2 × 10 = ______
6 × 10 = ______
19 + 20 = ______
9 × 10 = ______
5 × 10 = ______
62 − 10 = ______
30 − 10 = ______
25 + 10 = ______
17 + 10 = ______
34 − 10 = ______
64 + 10 = ______
