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
32 − 10 = ______
61 − 10 = ______
7 × 10 = ______
47 − 10 = ______
83 + 10 = ______
81 + 20 = ______
87 − 10 = ______
1 × 10 = ______
54 − 10 = ______
99 − 10 = ______
66 + 20 = ______
23 + 10 = ______
31 + 10 = ______
26 − 10 = ______
51 − 10 = ______
68 + 20 = ______
3 × 10 = ______
5 × 10 = ______
49 + 20 = ______
16 + 10 = ______
