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
87 + 20 = ______
49 + 20 = ______
34 − 10 = ______
73 + 10 = ______
45 − 10 = ______
3 × 10 = ______
73 + 20 = ______
4 × 10 = ______
19 + 10 = ______
37 − 10 = ______
7 × 10 = ______
6 × 10 = ______
66 + 10 = ______
36 − 10 = ______
29 − 10 = ______
96 − 10 = ______
19 + 20 = ______
38 − 10 = ______
51 − 10 = ______
2 × 10 = ______
