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
9 × 10 = ______
40 + 10 = ______
34 + 10 = ______
2 × 10 = ______
45 + 10 = ______
8 × 10 = ______
97 − 10 = ______
48 + 10 = ______
87 + 20 = ______
6 × 10 = ______
47 + 10 = ______
92 − 10 = ______
1 × 10 = ______
52 + 10 = ______
22 + 10 = ______
64 + 10 = ______
42 + 20 = ______
3 × 10 = ______
75 + 10 = ______
78 − 10 = ______
