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
75 + 20 = ______
97 − 10 = ______
39 + 20 = ______
7 × 10 = ______
33 + 20 = ______
75 + 10 = ______
3 × 10 = ______
50 − 10 = ______
2 × 10 = ______
58 − 10 = ______
24 + 20 = ______
87 + 20 = ______
42 + 10 = ______
61 + 10 = ______
1 × 10 = ______
6 × 10 = ______
52 + 10 = ______
81 + 10 = ______
78 − 10 = ______
94 − 10 = ______
