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
73 + 20 = ______
11 + 10 = ______
12 + 10 = ______
52 + 10 = ______
98 − 10 = ______
3 × 10 = ______
90 − 10 = ______
7 × 10 = ______
48 + 10 = ______
2 × 10 = ______
18 + 20 = ______
33 − 10 = ______
27 − 10 = ______
47 + 10 = ______
34 + 10 = ______
36 + 20 = ______
87 − 10 = ______
23 − 10 = ______
28 − 10 = ______
1 × 10 = ______
