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
53 + 10 = ______
12 + 20 = ______
39 − 10 = ______
75 + 20 = ______
3 × 10 = ______
1 × 10 = ______
88 − 10 = ______
4 × 10 = ______
28 + 10 = ______
38 − 10 = ______
29 + 10 = ______
83 − 10 = ______
41 − 10 = ______
2 × 10 = ______
33 + 10 = ______
8 × 10 = ______
12 + 10 = ______
97 − 10 = ______
34 + 10 = ______
29 + 20 = ______
