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
58 + 20 = ______
9 × 10 = ______
47 + 20 = ______
2 × 10 = ______
34 − 10 = ______
8 × 10 = ______
24 − 10 = ______
32 − 10 = ______
92 − 10 = ______
42 + 20 = ______
86 + 10 = ______
43 + 20 = ______
98 − 10 = ______
43 − 10 = ______
26 + 10 = ______
62 − 10 = ______
16 + 20 = ______
26 + 20 = ______
65 + 10 = ______
85 − 10 = ______
