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
56 − 10 = ______
43 + 20 = ______
73 + 10 = ______
73 + 20 = ______
44 + 10 = ______
85 − 10 = ______
30 + 10 = ______
82 + 10 = ______
5 × 10 = ______
8 × 10 = ______
3 × 10 = ______
19 + 10 = ______
29 − 10 = ______
65 − 10 = ______
4 × 10 = ______
42 − 10 = ______
34 + 20 = ______
1 × 10 = ______
36 + 20 = ______
27 + 10 = ______
