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
84 + 10 = ______
7 × 10 = ______
61 + 10 = ______
88 + 10 = ______
34 − 10 = ______
24 + 10 = ______
3 × 10 = ______
52 − 10 = ______
18 + 20 = ______
38 + 20 = ______
26 + 20 = ______
9 × 10 = ______
47 − 10 = ______
76 + 20 = ______
57 − 10 = ______
12 + 10 = ______
67 + 20 = ______
77 − 10 = ______
1 × 10 = ______
96 − 10 = ______
