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
50 + 10 = ______
1 × 10 = ______
3 × 10 = ______
31 − 10 = ______
24 − 10 = ______
24 + 20 = ______
23 + 10 = ______
70 + 20 = ______
88 + 10 = ______
8 × 10 = ______
34 + 10 = ______
62 − 10 = ______
73 + 20 = ______
56 + 20 = ______
75 + 20 = ______
73 + 10 = ______
65 − 10 = ______
40 − 10 = ______
25 + 10 = ______
23 + 20 = ______
