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
5 × 10 = ______
3 × 10 = ______
24 + 10 = ______
42 + 10 = ______
81 + 10 = ______
40 + 20 = ______
53 + 10 = ______
7 × 10 = ______
28 + 10 = ______
2 × 10 = ______
56 + 10 = ______
73 + 20 = ______
15 + 10 = ______
46 − 10 = ______
33 − 10 = ______
1 × 10 = ______
17 + 20 = ______
92 − 10 = ______
8 × 10 = ______
78 − 10 = ______
