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
88 − 10 = ______
48 + 20 = ______
63 − 10 = ______
27 + 10 = ______
1 × 10 = ______
39 + 20 = ______
3 × 10 = ______
13 + 20 = ______
25 + 10 = ______
19 + 20 = ______
8 × 10 = ______
34 + 10 = ______
5 × 10 = ______
98 − 10 = ______
69 − 10 = ______
23 + 10 = ______
6 × 10 = ______
44 + 10 = ______
47 + 10 = ______
79 + 20 = ______
